Benchmarking the extraction of statistical neutron capture cross sections on short-lived nuclei for applications using the β-Oslo method

doi:10.1103/PhysRevC.100.024624

This content will become publicly available on August 26, 2020

Title: Benchmarking the extraction of statistical neutron capture cross sections on short-lived nuclei for applications using the $β$ -Oslo method

Abstract

Numerous scientific fields including astrophysics, nuclear power, and nuclear forensics require a knowledge of basic nuclear properties for large numbers of short-lived, radioactive isotopes far removed from stable nuclei. Neutron-capture cross sections are one such piece of nuclear data where direct measurements are not possible and theoretical predictions can vary by orders of magnitude. A recently developed indirect technique for inferring neutron capture rates, the β-Oslo method, has been introduced but not compared against a known, directly measured neutron capture cross section. To provide this benchmark, two indirect methods based on β decay and charged-particle reactions were used to extract the nuclear level density and γ-ray strength function of ⁵¹Ti. The nuclear level density and γ-ray strength function from the two data sets were found to be equivalent and were used to extract the neutron capture cross section of ⁵⁰Ti which agrees with previous direct measurements at high neutron energies. Here, the results demonstrate the validity of the β-Oslo method for extracting neutron capture cross sections of short-lived nuclei and provide a sufficiently small uncertainty to be used in various applications.

Authors:

Liddick, S. N. ^[1]; Larsen, A. C. ^[2]; Guttormsen, M. ^[2]; Spyrou, A. ^[1]; Crider, B. P. ^[1]; Naqvi, F. ^[1]; Midtbø, J. E. ^[2]; Bello Garrote, F. L. ^[2]; Bleuel, D. L. ^[3]; Crespo Campo, L. ^[2]; Couture, A. ^[4]; Dombos, A. C. ^[1]; Giacoppo, F. ^[5]; Görgen, A. ^[2]; Hadynska-Klek, K. ^[2]; Hagen, T. W. ^[2]; Ingeberg, V. W. ^[2]; Kheswa, B. V. ^[6]; Lewis, R. ^[1]; Mosby, S. ^[4] more »

Michigan State Univ., East Lansing, MI (United States)
Univ. of Oslo, Oslo (Norway)
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Univ. of Oslo, Oslo (Norway); Helmholtz Inst. Mainz, Mainz (Germany); GSI Helmholtzzentrum für Schwerionenforschung GmbH, Darmstadt (Germany)
iThemba LABS (South Africa); Univ. of Oslo, Oslo (Norway)
Central Michigan Univ., Mount Pleasant, MI (United States); Michigan State Univ., East Lansing, MI (United States)
iThemba LABS (South Africa)

Publication Date:: 2019-08-26

Research Org.:: Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)

Sponsoring Org.:: USDOE National Nuclear Security Administration (NNSA)

OSTI Identifier:: 1561454

Alternate Identifier(s):: OSTI ID: 1558834

Report Number(s):: LLNL-JRNL-760247
Journal ID: ISSN 2469-9985; PRVCAN; 947179

Grant/Contract Number:: AC52-07NA27344; SC0013039; NA0000979; NA0003180; NA0003221; FC03-03NA00143

Resource Type:: Accepted Manuscript

Journal Name:: Physical Review C

Additional Journal Information:: Journal Volume: 100; Journal Issue: 2; Journal ID: ISSN 2469-9985

Publisher:: American Physical Society (APS)

Country of Publication:: United States

Language:: English

Subject:: 73 NUCLEAR PHYSICS AND RADIATION PHYSICS

Citation Formats


                    Liddick, S. N., Larsen, A. C., Guttormsen, M., Spyrou, A., Crider, B. P., Naqvi, F., Midtbø, J. E., Bello Garrote, F. L., Bleuel, D. L., Crespo Campo, L., Couture, A., Dombos, A. C., Giacoppo, F., Görgen, A., Hadynska-Klek, K., Hagen, T. W., Ingeberg, V. W., Kheswa, B. V., Lewis, R., Mosby, S., Perdikakis, G., Prokop, C. J., Quinn, S. J., Renstrøm, T., Rose, S. J., Sahin, E., Siem, S., Tveten, G. M., Wiedeking, M., and Zeiser, F. Benchmarking the extraction of statistical neutron capture cross sections on short-lived nuclei for applications using the β-Oslo method.  United States: N. p., 2019. 
        Web.  doi:10.1103/PhysRevC.100.024624.

Copy to clipboard


                    Liddick, S. N., Larsen, A. C., Guttormsen, M., Spyrou, A., Crider, B. P., Naqvi, F., Midtbø, J. E., Bello Garrote, F. L., Bleuel, D. L., Crespo Campo, L., Couture, A., Dombos, A. C., Giacoppo, F., Görgen, A., Hadynska-Klek, K., Hagen, T. W., Ingeberg, V. W., Kheswa, B. V., Lewis, R., Mosby, S., Perdikakis, G., Prokop, C. J., Quinn, S. J., Renstrøm, T., Rose, S. J., Sahin, E., Siem, S., Tveten, G. M., Wiedeking, M., & Zeiser, F. Benchmarking the extraction of statistical neutron capture cross sections on short-lived nuclei for applications using the β-Oslo method.  United States.  doi:10.1103/PhysRevC.100.024624.

Copy to clipboard


                    Liddick, S. N., Larsen, A. C., Guttormsen, M., Spyrou, A., Crider, B. P., Naqvi, F., Midtbø, J. E., Bello Garrote, F. L., Bleuel, D. L., Crespo Campo, L., Couture, A., Dombos, A. C., Giacoppo, F., Görgen, A., Hadynska-Klek, K., Hagen, T. W., Ingeberg, V. W., Kheswa, B. V., Lewis, R., Mosby, S., Perdikakis, G., Prokop, C. J., Quinn, S. J., Renstrøm, T., Rose, S. J., Sahin, E., Siem, S., Tveten, G. M., Wiedeking, M., and Zeiser, F. Mon .  
        "Benchmarking the extraction of statistical neutron capture cross sections on short-lived nuclei for applications using the β-Oslo method".  United States.  doi:10.1103/PhysRevC.100.024624.

Copy to clipboard


                    
@article{osti_1561454,

  title        = {Benchmarking the extraction of statistical neutron capture cross sections on short-lived nuclei for applications using the β-Oslo method},

  author       = {Liddick, S. N. and Larsen, A. C. and Guttormsen, M. and Spyrou, A. and Crider, B. P. and Naqvi, F. and Midtbø, J. E. and Bello Garrote, F. L. and Bleuel, D. L. and Crespo Campo, L. and Couture, A. and Dombos, A. C. and Giacoppo, F. and Görgen, A. and Hadynska-Klek, K. and Hagen, T. W. and Ingeberg, V. W. and Kheswa, B. V. and Lewis, R. and Mosby, S. and Perdikakis, G. and Prokop, C. J. and Quinn, S. J. and Renstrøm, T. and Rose, S. J. and Sahin, E. and Siem, S. and Tveten, G. M. and Wiedeking, M. and Zeiser, F.},

  abstractNote = {Numerous scientific fields including astrophysics, nuclear power, and nuclear forensics require a knowledge of basic nuclear properties for large numbers of short-lived, radioactive isotopes far removed from stable nuclei. Neutron-capture cross sections are one such piece of nuclear data where direct measurements are not possible and theoretical predictions can vary by orders of magnitude. A recently developed indirect technique for inferring neutron capture rates, the β-Oslo method, has been introduced but not compared against a known, directly measured neutron capture cross section. To provide this benchmark, two indirect methods based on β decay and charged-particle reactions were used to extract the nuclear level density and γ-ray strength function of 51Ti. The nuclear level density and γ-ray strength function from the two data sets were found to be equivalent and were used to extract the neutron capture cross section of 50Ti which agrees with previous direct measurements at high neutron energies. Here, the results demonstrate the validity of the β-Oslo method for extracting neutron capture cross sections of short-lived nuclei and provide a sufficiently small uncertainty to be used in various applications.},

  doi          = {10.1103/PhysRevC.100.024624},

  journal      = {Physical Review C},

  number       = 2,

  volume       = 100,

  place        = {United States},

  year         = {2019},

  month        = {8}

}

Copy to clipboard

Journal Article:

Free Publicly Available Full Text

This content will become publicly available on August 26, 2020

Publisher's Version of Record

DOI: 10.1103/PhysRevC.100.024624

Other availability

Search WorldCat to find libraries that may hold this journal

Save / Share:

Export Metadata

Save to My Library

Works referenced in this record:

The 48Ca(α, p) 51Sc reaction; experimental results and shell model calculations
journal, August 1967

Ginaven, R. O.; Bernstein, A. M.; Drisko, R. M.
Physics Letters B, Vol. 25, Issue 3
DOI: 10.1016/0370-2693(67)90038-X

Low-energy enhancement and fluctuations of γ -ray strength functions in ^56,57 Fe: test of the Brink–Axel hypothesis
journal, April 2017

Larsen, A. C.; Guttormsen, M.; Blasi, N.
Journal of Physics G: Nuclear and Particle Physics, Vol. 44, Issue 6
DOI: 10.1088/1361-6471/aa644a

r -PROCESS NUCLEOSYNTHESIS IN DYNAMICALLY EJECTED MATTER OF NEUTRON STAR MERGERS
journal, August 2011

Goriely, Stephane; Bauswein, Andreas; Janka, Hans-Thomas
The Astrophysical Journal, Vol. 738, Issue 2
DOI: 10.1088/2041-8205/738/2/L32

Nuclear data sensitivity, uncertainty and target accuracy assessment for future nuclear systems
journal, May 2006

Aliberti, G.; Palmiotti, G.; Salvatores, M.
Annals of Nuclear Energy, Vol. 33, Issue 8
DOI: 10.1016/j.anucene.2006.02.003

Large Enhancement of Radiative Strength for Soft Transitions in the Quasicontinuum
journal, September 2004

Voinov, A.; Algin, E.; Agvaanluvsan, U.
Physical Review Letters, Vol. 93, Issue 14
DOI: 10.1103/PhysRevLett.93.142504

Astrophysical Reaction Rates From Statistical Model Calculations
journal, May 2000

Rauscher, Thomas; Thielemann, Friedrich-Karl
Atomic Data and Nuclear Data Tables, Vol. 75, Issue 1-2
DOI: 10.1006/adnd.2000.0834

RIPL – Reference Input Parameter Library for Calculation of Nuclear Reactions and Nuclear Data Evaluations
journal, December 2009

Capote, R.; Herman, M.; Obložinský, P.
Nuclear Data Sheets, Vol. 110, Issue 12
DOI: 10.1016/j.nds.2009.10.004

Spurious center-of-mass motion
journal, December 1974

Gloeckner, D. H.; Lawson, R. D.
Physics Letters B, Vol. 53, Issue 4
DOI: 10.1016/0370-2693(74)90390-6

Quasicontinuum $γ$ decay of ${}^{91, 92}{Zr}$ : Benchmarking indirect ( $n, γ$ ) cross section measurements for the $s$ process
journal, August 2017

Guttormsen, M.; Goriely, S.; Larsen, A. C.
Physical Review C, Vol. 96, Issue 2
DOI: 10.1103/PhysRevC.96.024313

Are the level densities for r - and $rp$ -process nuclei different from nearby nuclei in the valley of stability?
journal, May 2001

Al-Quraishi, S. I.; Grimes, S. M.; Massey, T. N.
Physical Review C, Vol. 63, Issue 6
DOI: 10.1103/PhysRevC.63.065803

The Discovery of the Electromagnetic Counterpart of GW170817: Kilonova AT 2017gfo/DLT17ck
journal, October 2017

Valenti, Stefano; Sand, David, J.; Yang, Sheng
The Astrophysical Journal, Vol. 848, Issue 2
DOI: 10.3847/2041-8213/aa8edf

SuN: Summing NaI(Tl) gamma-ray detector for capture reaction measurements
journal, March 2013

Simon, A.; Quinn, S. J.; Spyrou, A.
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 703
DOI: 10.1016/j.nima.2012.11.045

The AME2016 atomic mass evaluation (II). Tables, graphs and references
journal, March 2017

Wang, Meng; Audi, G.; Kondev, F. G.
Chinese Physics C, Vol. 41, Issue 3
DOI: 10.1088/1674-1137/41/3/030003

Statistics and the average cross section
journal, August 1980

Moldauer, P. A.
Nuclear Physics A, Vol. 344, Issue 2
DOI: 10.1016/0375-9474(80)90671-5

The jina Reaclib Database: its Recent Updates and Impact on Type-I X-Ray Bursts
journal, June 2010

Cyburt, Richard H.; Amthor, A. Matthew; Ferguson, Ryan
The Astrophysical Journal Supplement Series, Vol. 189, Issue 1
DOI: 10.1088/0067-0049/189/1/240

Light curves of the neutron star merger GW170817/SSS17a: Implications for r-process nucleosynthesis
journal, October 2017

Drout, M. R.; Piro, A. L.; Shappee, B. J.
Science, Vol. 358, Issue 6370
DOI: 10.1126/science.aaq0049

Experimentally constrained $(p, γ) {}^{89}Y$ and $(n, γ) {}^{89}Y$ reaction rates relevant to $p$ -process nucleosynthesis
journal, April 2016

Larsen, A. C.; Guttormsen, M.; Schwengner, R.
Physical Review C, Vol. 93, Issue 4
DOI: 10.1103/PhysRevC.93.045810

Low-Energy Magnetic Dipole Radiation in Open-Shell Nuclei
journal, March 2017

Schwengner, R.; Frauendorf, S.; Brown, B. A.
Physical Review Letters, Vol. 118, Issue 9
DOI: 10.1103/PhysRevLett.118.092502

Systematics of the excitation of M1 resonances in medium heavy nuclei by 200 MeV proton inelastic scattering
journal, October 1982

Djalali, C.; Marty, N.; Morlet, M.
Nuclear Physics A, Vol. 388, Issue 1
DOI: 10.1016/0375-9474(82)90505-X

Origin of the heavy elements in binary neutron-star mergers from a gravitational-wave event
journal, October 2017

Kasen, Daniel; Metzger, Brian; Barnes, Jennifer
Nature, Vol. 551, Issue 7678
DOI: 10.1038/nature24453

Constraining Neutron Capture Cross Sections for Unstable Nuclei with Surrogate Reaction Data and Theory
journal, July 2018

Escher, J. E.; Burke, J. T.; Hughes, R. O.
Physical Review Letters, Vol. 121, Issue 5
DOI: 10.1103/PhysRevLett.121.052501

Validity of the Generalized Brink-Axel Hypothesis in ${}^{238}{Np}$
journal, January 2016

Guttormsen, M.; Larsen, A. C.; Görgen, A.
Physical Review Letters, Vol. 116, Issue 1
DOI: 10.1103/PhysRevLett.116.012502

Extraction of thermal and electromagnetic properties in ${}^{45}{Ti}$
journal, October 2009

Syed, N. U. H.; Larsen, A. C.; Bürger, A.
Physical Review C, Vol. 80, Issue 4
DOI: 10.1103/PhysRevC.80.044309

The SiRi particle-telescope system
journal, August 2011

Guttormsen, M.; Bürger, A.; Hansen, T. E.
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 648, Issue 1
DOI: 10.1016/j.nima.2011.05.055

A measurement of the 50Ti(γ, n) and 50Ti(γ, n0) cross sections
journal, August 1979

Pywell, R. E.; Thompson, M. N.; Hicks, R. A.
Nuclear Physics A, Vol. 325, Issue 1
DOI: 10.1016/0375-9474(79)90156-8

The impact of individual nuclear properties on $r$ -process nucleosynthesis
journal, January 2016

Mumpower, M. R.; Surman, R.; McLaughlin, G. C.
Progress in Particle and Nuclear Physics, Vol. 86
DOI: 10.1016/j.ppnp.2015.09.001

Statistical properties of ${}^{243}{Pu}$ , and ${}^{242}{Pu} (n, γ)$ cross section calculation
journal, January 2016

Laplace, T. A.; Zeiser, F.; Guttormsen, M.
Physical Review C, Vol. 93, Issue 1
DOI: 10.1103/PhysRevC.93.014323

${}^{137, 138, 139}{La} (n, γ)$ cross sections constrained with statistical decay properties of ${}^{138, 139, 140}{La}$ nuclei
journal, April 2017

Kheswa, B. V.; Wiedeking, M.; Brown, J. A.
Physical Review C, Vol. 95, Issue 4
DOI: 10.1103/PhysRevC.95.045805

Hauser-Feshbach calculations in the presence of weakly absorbing channels with special reference to the elastic enhancement factor and the factorization assumption
journal, June 1980

Hofmann, H. M.; Mertelmeier, T.; Herman, M.
Zeitschrift f�r Physik A Atoms and Nuclei, Vol. 297, Issue 2
DOI: 10.1007/BF01421472

Fluctuations of Nuclear Reaction Widths
journal, October 1956

Porter, C. E.; Thomas, R. G.
Physical Review, Vol. 104, Issue 2
DOI: 10.1103/PhysRev.104.483

Direct reactions and Hauser-Feshbach theory
journal, April 1975

Hofmann, H. M.; Richert, J.; Tepel, J. W.
Annals of Physics, Vol. 90, Issue 2
DOI: 10.1016/0003-4916(75)90005-6

A Composite Nuclear-Level Density Formula with Shell Corrections
journal, August 1965

Gilbert, A.; Cameron, A. G. W.
Canadian Journal of Physics, Vol. 43, Issue 8
DOI: 10.1139/p65-139

Excitation of ΔL = 0 spin-flip transitions in the N = 28 isotones by 201 MeV proton inelastic scattering
journal, December 1983

Djalali, C.; Marty, N.; Morlet, M.
Nuclear Physics A, Vol. 410, Issue 3
DOI: 10.1016/0375-9474(83)90633-4

Statistical Gamma-Decay at Low Angular Momentum
journal, January 1990

Guttormsen, M.; Atac, A.; Løvhøiden, G.
Physica Scripta, Vol. T32
DOI: 10.1088/0031-8949/1990/T32/010

Testing the constant-temperature approach for the nuclear level density
journal, November 2017

Dang, N. Dinh; Hung, N. Quang; Huong, L. T. Quynh
Physical Review C, Vol. 96, Issue 5
DOI: 10.1103/PhysRevC.96.054321

Observation of the M1 giant resonance by resonance averaging in 106Pd
journal, June 1987

Kopecky, J.; Chrien, R. E.
Nuclear Physics A, Vol. 468, Issue 2
DOI: 10.1016/0375-9474(87)90518-5

Swope Supernova Survey 2017a (SSS17a), the optical counterpart to a gravitational wave source
journal, October 2017

Coulter, D. A.; Foley, R. J.; Kilpatrick, C. D.
Science, Vol. 358, Issue 6370
DOI: 10.1126/science.aap9811

Experimental energy-dependent nuclear spin distributions
journal, November 2009

von Egidy, T.; Bucurescu, D.
Physical Review C, Vol. 80, Issue 5
DOI: 10.1103/PhysRevC.80.054310

Examination of the low-energy enhancement of the $γ$ -ray strength function of ${}^{56}{Fe}$
journal, February 2018

Jones, M. D.; Macchiavelli, A. O.; Wiedeking, M.
Physical Review C, Vol. 97, Issue 2
DOI: 10.1103/PhysRevC.97.024327

Synthesis of the Elements in Stars
journal, October 1957

Burbidge, E. Margaret; Burbidge, G. R.; Fowler, William A.
Reviews of Modern Physics, Vol. 29, Issue 4
DOI: 10.1103/RevModPhys.29.547

The magic nature of 132Sn explored through the single-particle states of 133Sn
journal, May 2010

Jones, K. L.; Adekola, A. S.; Bardayan, D. W.
Nature, Vol. 465, Issue 7297
DOI: 10.1038/nature09048

Large Low-Energy $M 1$ Strength for ${}^{56, 57}{Fe}$ within the Nuclear Shell Model
journal, December 2014

Brown, B. Alex; Larsen, A. C.
Physical Review Letters, Vol. 113, Issue 25
DOI: 10.1103/PhysRevLett.113.252502

Cosmoradiogenic Chronologies of Nucleosynthesis.
journal, February 1964

Clayton, Donald D.
The Astrophysical Journal, Vol. 139
DOI: 10.1086/147791

The first generation of γ-rays from hot nuclei
journal, April 1987

Guttormsen, M.; Ramsøy, T.; Rekstad, J.
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 255, Issue 3
DOI: 10.1016/0168-9002(87)91221-6

Effects of translational invariance violation in particle-hole calculations. Application to 208Pb
journal, July 1968

Palumbo, F.; Prosperi, D.
Nuclear Physics A, Vol. 115, Issue 2
DOI: 10.1016/0375-9474(68)90005-5

The unfolding of continuum γ-ray spectra
journal, June 1996

Guttormsen, M.; Tveter, T. S.; Bergholt, L.
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 374, Issue 3
DOI: 10.1016/0168-9002(96)00197-0

Test of gamma-ray strength functions in nuclear reaction model calculations
journal, May 1990

Kopecky, J.; Uhl, M.
Physical Review C, Vol. 41, Issue 5
DOI: 10.1103/PhysRevC.41.1941

Systematic study of direct neutron capture
journal, October 2012

Xu, Yi; Goriely, Stephane
Physical Review C, Vol. 86, Issue 4
DOI: 10.1103/PhysRevC.86.045801

Photoneutron cross sections for Mo isotopes: A step toward a unified understanding of $(γ, n)$ and $(n, γ)$ reactions
journal, July 2013

Utsunomiya, H.; Goriely, S.; Kondo, T.
Physical Review C, Vol. 88, Issue 1
DOI: 10.1103/PhysRevC.88.015805

Electric Dipole Ground-State Transition Width Strength Function and 7-Mev Photon Interactions
journal, April 1962

Axel, Peter
Physical Review, Vol. 126, Issue 2
DOI: 10.1103/PhysRev.126.671

Verification of detailed balance for $γ$ absorption and emission in Dy isotopes
journal, November 2018

Renstrøm, T.; Utsunomiya, H.; Nyhus, H. T.
Physical Review C, Vol. 98, Issue 5
DOI: 10.1103/PhysRevC.98.054310

GW170817: Observation of Gravitational Waves from a Binary Neutron Star Inspiral
journal, October 2017

Abbott, B. P.; Abbott, R.; Abbott, T. D.
Physical Review Letters, Vol. 119, Issue 16
DOI: 10.1103/PhysRevLett.119.161101

Novel technique for Constraining $r$ -Process ( $n$ , $γ$ ) Reaction Rates
journal, December 2014

Spyrou, A.; Liddick, S. N.; Larsen, A. C.
Physical Review Letters, Vol. 113, Issue 23
DOI: 10.1103/PhysRevLett.113.232502

Beta decay of ${}^{51}{Sc}$ to states in ${}^{51}{Ti}$
journal, October 1976

Davids, C. N.; Tabor, S. L.; Norman, E. B.
Physical Review C, Vol. 14, Issue 4
DOI: 10.1103/PhysRevC.14.1601

$γ$ -ray strength function method and its application to ${}^{107}{Pd}$
journal, December 2010

Utsunomiya, H.; Goriely, S.; Akimune, H.
Physical Review C, Vol. 82, Issue 6
DOI: 10.1103/PhysRevC.82.064610

Modern Nuclear Data Evaluation with the TALYS Code System
journal, December 2012

Koning, A. J.; Rochman, D.
Nuclear Data Sheets, Vol. 113, Issue 12
DOI: 10.1016/j.nds.2012.11.002

Evidence for the Dipole Nature of the Low-Energy $γ$ Enhancement in ${}^{56}{Fe}$
journal, December 2013

Larsen, A. C.; Blasi, N.; Bracco, A.
Physical Review Letters, Vol. 111, Issue 24
DOI: 10.1103/PhysRevLett.111.242504

Neutron physics of the Re/Os clock. I. Measurement of the ( $n, γ$ ) cross sections of ${}^{186, 187, 188}{Os}$ at the CERN n_TOF facility
journal, July 2010

Mosconi, M.; Fujii, K.; Mengoni, A.
Physical Review C, Vol. 82, Issue 1
DOI: 10.1103/PhysRevC.82.015802

Impact of a low-energy enhancement in the $γ$ -ray strength function on the neutron-capture cross section
journal, July 2010

Larsen, A. C.; Goriely, S.
Physical Review C, Vol. 82, Issue 1
DOI: 10.1103/PhysRevC.82.014318

Effective interaction for $pf$ -shell nuclei
journal, May 2002

Honma, M.; Otsuka, T.; Brown, B. A.
Physical Review C, Vol. 65, Issue 6
DOI: 10.1103/PhysRevC.65.061301

Commissioning the A1900 projectile fragment separator
journal, May 2003

Morrissey, D. J.; Sherrill, B. M.; Steiner, M.
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, Vol. 204
DOI: 10.1016/S0168-583X(02)01895-5

Local and global nucleon optical models from 1 keV to 200 MeV
journal, January 2003

Koning, A. J.; Delaroche, J. P.
Nuclear Physics A, Vol. 713, Issue 3-4
DOI: 10.1016/S0375-9474(02)01321-0

Experimental level densities of atomic nuclei
journal, December 2015

Guttormsen, M.; Aiche, M.; Bello Garrote, F. L.
The European Physical Journal A, Vol. 51, Issue 12
DOI: 10.1140/epja/i2015-15170-4

Changes in r -process abundances at late times
journal, August 2001

Surman, R.; Engel, J.
Physical Review C, Vol. 64, Issue 3
DOI: 10.1103/PhysRevC.64.035801

Level density and $γ$ -ray strength function in the odd-odd ${}^{238}{Np}$ nucleus
journal, April 2014

Tornyi, T. G.; Guttormsen, M.; Eriksen, T. K.
Physical Review C, Vol. 89, Issue 4
DOI: 10.1103/PhysRevC.89.044323

Extraction of level density and γ strength function from primary γ spectra
journal, June 2000

Schiller, A.; Bergholt, L.; Guttormsen, M.
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 447, Issue 3
DOI: 10.1016/S0168-9002(99)01187-0

Nuclear robustness of the $r$ process in neutron-star mergers
journal, November 2015

Mendoza-Temis, Joel de Jesús; Wu, Meng-Ru; Langanke, Karlheinz
Physical Review C, Vol. 92, Issue 5
DOI: 10.1103/PhysRevC.92.055805

Low-Energy Enhancement of Magnetic Dipole Radiation
journal, December 2013

Schwengner, R.; Frauendorf, S.; Larsen, A. C.
Physical Review Letters, Vol. 111, Issue 23
DOI: 10.1103/PhysRevLett.111.232504

Constraints on the dipole photon strength functions from experimental multistep cascade spectra
journal, April 2019

Krtička, M.; Goriely, S.; Hilaire, S.
Physical Review C, Vol. 99, Issue 4
DOI: 10.1103/PhysRevC.99.044308

Shell-gap-reduced level densities in ${}^{89, 90}Y$
journal, October 2014

Guttormsen, M.; Larsen, A. C.; Garrote, F. L. Bello
Physical Review C, Vol. 90, Issue 4
DOI: 10.1103/PhysRevC.90.044309

Electric and Magnetic Dipole Strength at Low Energy
journal, July 2017

Sieja, K.
Physical Review Letters, Vol. 119, Issue 5
DOI: 10.1103/PhysRevLett.119.052502

Evaluation of the fluctuation enhancement factor
journal, August 1976

Moldauer, P. A.
Physical Review C, Vol. 14, Issue 2
DOI: 10.1103/PhysRevC.14.764

Neutron-capture rates for explosive nucleosynthesis: the case of ⁶⁸ Ni( n , γ ) ⁶⁹ Ni
journal, February 2017

Spyrou, A.; Larsen, A. C.; Liddick, S. N.
Journal of Physics G: Nuclear and Particle Physics, Vol. 44, Issue 4
DOI: 10.1088/1361-6471/aa5ae7

Decay of ${Ti}^{51}$ and ${Cr}^{51}$
journal, March 1955

Bunker, M. E.; Starner, J. W.
Physical Review, Vol. 97, Issue 5
DOI: 10.1103/PhysRev.97.1272

Compound-nuclear reaction cross sections from surrogate measurements
journal, March 2012

Escher, Jutta E.; Burke, Jason T.; Dietrich, Frank S.
Reviews of Modern Physics, Vol. 84, Issue 1
DOI: 10.1103/RevModPhys.84.353

Spectroscopic identification of r-process nucleosynthesis in a double neutron-star merger
journal, October 2017

Pian, E.; D’Avanzo, P.; Benetti, S.
Nature, Vol. 551, Issue 7678
DOI: 10.1038/nature24298

A statistical analysis of excited nuclear states
journal, May 1959

Ericson, Torleif
Nuclear Physics, Vol. 11
DOI: 10.1016/0029-5582(59)90291-3

Entropy Driven Excitation Energy Sorting in Superfluid Fission Dynamics
journal, May 2010

Schmidt, Karl-Heinz; Jurado, Beatriz
Physical Review Letters, Vol. 104, Issue 21
DOI: 10.1103/PhysRevLett.104.212501

Systematics of nuclear level density parameters
journal, October 2005

Egidy, Till von; Bucurescu, Dorel
Physical Review C, Vol. 72, Issue 4
DOI: 10.1103/PhysRevC.72.044311

MEASUREMENT OF THE HALF-LIVES OF AcC″, Cu ⁶⁶ , Mg ²⁷ , Ti ⁵¹ , Tl ²⁰⁶ , and V ⁵²
journal, February 1953

Sargent, B. W.; Yaffe, L.; Gray, A. P.
Canadian Journal of Physics, Vol. 31, Issue 2
DOI: 10.1139/p53-025

Nuclear excitations at constant temperature
journal, March 2009

Voinov, A. V.; Oginni, B. M.; Grimes, S. M.
Physical Review C, Vol. 79, Issue 3
DOI: 10.1103/PhysRevC.79.031301

Primary $γ$ -ray spectra in $^{44}$ Ti of astrophysical interest
journal, January 2012

Larsen, A. C.; Goriely, S.; Bürger, A.
Physical Review C, Vol. 85, Issue 1
DOI: 10.1103/PhysRevC.85.014320

Section efficace de capture radiative pour des neutrons d'une source Sb-Be
journal, January 1958

Vervier, J. F.
Nuclear Physics, Vol. 9, Issue 4
DOI: 10.1016/0029-5582(58)90339-0

Fast neutron capture by vanadium and titanium
journal, August 1969

Dudey, N. D.; Heinrich, R. R.; Madson, A. A.
Journal of Nuclear Energy, Vol. 23, Issue 8
DOI: 10.1016/0022-3107(69)90014-8

Enhanced low-energy $γ -decay$ strength of ${}^{70}{Ni}$ and its robustness within the shell model
journal, May 2018

Larsen, A. C.; Midtbø, J. E.; Guttormsen, M.
Physical Review C, Vol. 97, Issue 5
DOI: 10.1103/PhysRevC.97.054329

Intrinsic motion and translational invariance in shell-model calculations
journal, June 1967

Palumbo, F.
Nuclear Physics A, Vol. 99, Issue 1
DOI: 10.1016/0375-9474(67)90211-4

Nuclear level density and the determination of thermonuclear rates for astrophysics
journal, September 1997

Rauscher, Thomas; Thielemann, Friedrich-Karl; Kratz, Karl-Ludwig
Physical Review C, Vol. 56, Issue 3
DOI: 10.1103/PhysRevC.56.1613

Analysis of possible systematic errors in the Oslo method
journal, March 2011

Larsen, A. C.; Guttormsen, M.; Krtička, M.
Physical Review C, Vol. 83, Issue 3
DOI: 10.1103/PhysRevC.83.034315

Test of the generalized Brink-Axel hypothesis in ${}^{64, 65}{Ni}$
journal, November 2018

Campo, L. Crespo; Guttormsen, M.; Garrote, F. L. Bello
Physical Review C, Vol. 98, Issue 5
DOI: 10.1103/PhysRevC.98.054303

Hauser-Feshbach formulas for medium and strong absorption
journal, March 1974

Tepel, J. W.; Hofmann, H. M.; Weidenmüller, H. A.
Physics Letters B, Vol. 49, Issue 1
DOI: 10.1016/0370-2693(74)90565-6

Experimental Neutron Capture Rate Constraint Far from Stability
journal, June 2016

Liddick, S. N.; Spyrou, A.; Crider, B. P.
Physical Review Letters, Vol. 116, Issue 24
DOI: 10.1103/PhysRevLett.116.242502

Constant-temperature level densities in the quasicontinuum of Th and U isotopes
journal, August 2013

Guttormsen, M.; Jurado, B.; Wilson, J. N.
Physical Review C, Vol. 88, Issue 2
DOI: 10.1103/PhysRevC.88.024307

Shape transitions in exotic Si and S isotopes and tensor-force-driven Jahn-Teller effect
journal, November 2012

Utsuno, Yutaka; Otsuka, Takaharu; Brown, B. Alex
Physical Review C, Vol. 86, Issue 5
DOI: 10.1103/PhysRevC.86.051301

The r-process of stellar nucleosynthesis: Astrophysics and nuclear physics achievements and mysteries
journal, September 2007

Arnould, M.; Goriely, S.; Takahashi, K.
Physics Reports, Vol. 450, Issue 4-6
DOI: 10.1016/j.physrep.2007.06.002

Lane-consistent, semimicroscopic nucleon-nucleus optical model
journal, January 2001

Bauge, E.; Delaroche, J. P.; Girod, M.
Physical Review C, Vol. 63, Issue 2
DOI: 10.1103/PhysRevC.63.024607

Advanced nuclear energy systems and the need of accurate nuclear data: the n_TOF project at CERN
journal, January 2010

Colonna, N.; Belloni, F.; Berthoumieux, E.
Energy & Environmental Science, Vol. 3, Issue 12
DOI: 10.1039/c0ee00108b

Similar records in OSTI.GOV collections:

Experimental constraints on the ${}^{73}{Zn} (n, γ) {}^{74}{Zn}$ reaction rate

Journal Article Lewis, R. ; Liddick, S. N. ; Larsen, A. C. ; ... - Physical Review C

Background: The recent observation of a neutron-star merger finally confirmed one astrophysical location of the rapid neutron-capture process (r-process). Evidence of the production of A < 140 nuclei was seen, but there is still little detailed information about how those lighter elements are produced in such an environment. Many of the questions surrounding the A ≈ 80 nuclei are likely to be answered only when the nuclear physics involved in the production of r-process nuclei is well understood. Neutron-capture reactions are an important component of the r-process, and neutron-capture cross sections of r-process nuclei, which are very neutron rich, havemore »« less
DOI: 10.1103/PhysRevC.99.034601
Neutron-capture rates for explosive nucleosynthesis: the case of ⁶⁸ Ni( n , γ ) ⁶⁹ Ni

Journal Article Spyrou, A. ; Larsen, A. C. ; Liddick, S. N. ; ... - Journal of Physics. G, Nuclear and Particle Physics

Neutron-capture reactions play an important role in heavy element nucleosynthesis, since they are the driving force for the two processes that create the vast majority of the heavy elements. When a neutron capture occurs on a short-lived nucleus, it is extremely challenging to study the reaction directly and therefore the use of indirect techniques is essential. The present work reports on such an indirect measurement that provides strong constraints on the ⁶⁸Ni(n,g) ⁶⁹Ni reaction rate. This is done by populating the compound nucleus ⁶⁹Ni via the beta-decay of ⁶⁹Co and measuring the gamma-ray deexcitation of excited states in ⁶⁹Ni. Themore »« less
DOI: 10.1088/1361-6471/aa5ae7

Full Text Available
Neutron-capture rates for explosive nucleosynthesis: the case of ⁶⁸ Ni( n , γ ) ⁶⁹ Ni

Journal Article Spyrou, A. ; Larsen, A. C. ; Liddick, S. N. ; ... - Journal of Physics. G, Nuclear and Particle Physics

Neutron-capture reactions play an important role in heavy element nucleosynthesis, since they are the driving force for the two processes that create the vast majority of the heavy elements. When a neutron capture occurs on a short-lived nucleus, it is extremely challenging to study the reaction directly and therefore the use of indirect techniques is essential. The present work reports on such an indirect measurement that provides strong constraints on the ⁶⁸Ni(n, γ) ⁶⁹Ni reaction rate. This is done by populating the compound nucleus ⁶⁹Ni via the β decay of ⁶⁹Co and measuring the γ-ray deexcitation of excited states inmore »« less
DOI: 10.1088/1361-6471/aa5ae7

Full Text Available
Towards Neutron Capture on Exotic Nuclei: Demonstrating $(d, p γ)$ as a Surrogate Reaction for $(n, γ)$

Journal Article Ratkiewicz, A. ; Cizewski, J. A. ; Escher, J. E. ; ... - Physical Review Letters

The neutron-capture reaction plays a critical role in the synthesis of the elements in stars and is important for societal applications including nuclear power generation and stockpile-stewardship science. However, it is difficult—if not impossible—to directly measure neutron capture cross sections for the exotic, short-lived nuclei that participate in these processes. We demonstrate a new technique which can be used to indirectly determine neutron-capture cross sections for exotic systems. This technique makes use of themore »« less
Cited by 4
DOI: 10.1103/PhysRevLett.122.052502
Quasicontinuum $γ$ decay of ${}^{91, 92}{Zr}$ : Benchmarking indirect ( $n, γ$ ) cross section measurements for the $s$ process

Journal Article Guttormsen, M. ; Goriely, S. ; Larsen, A. C. ; ... - Physical Review C

Here, nuclear level densities (NLDs) and γ-ray strength functions (γSFs) have been extracted from particle-γ coincidences of the ⁹²Zr(p,p´γ) ⁹²Zr and ⁹²Zr (p,dγ) ⁹¹Zr reactions using the Oslo method. The new ^91,92Zr γSF data, combined with photonuclear cross sections, cover the whole energy range from Eγ ≈ 1.5 MeV up to the giant dipole resonance at Eγ ≈ 17 MeV. The wide-range γSF data display structures at Eγ ≈ 9.5 MeV, compatible with a superposition of the spin-flip M1 resonance and a pygmy E1 resonance. Furthermore, the γSF shows a minimum at Eγ ≈ 2–3 MeV and an increase atmore »« less
Cited by 3
DOI: 10.1103/PhysRevC.96.024313

Full Text Available

Similar Records

This content will become publicly available on August 26, 2020

Title: Benchmarking the extraction of statistical neutron capture cross sections on short-lived nuclei for applications using the β -Oslo method

Abstract

Citation Formats

The 48Ca(α, p) 51Sc reaction; experimental results and shell model calculations journal, August 1967

Low-energy enhancement and fluctuations of γ -ray strength functions in 56,57 Fe: test of the Brink–Axel hypothesis journal, April 2017

r -PROCESS NUCLEOSYNTHESIS IN DYNAMICALLY EJECTED MATTER OF NEUTRON STAR MERGERS journal, August 2011

Nuclear data sensitivity, uncertainty and target accuracy assessment for future nuclear systems journal, May 2006

Large Enhancement of Radiative Strength for Soft Transitions in the Quasicontinuum journal, September 2004

Astrophysical Reaction Rates From Statistical Model Calculations journal, May 2000

RIPL – Reference Input Parameter Library for Calculation of Nuclear Reactions and Nuclear Data Evaluations journal, December 2009

Spurious center-of-mass motion journal, December 1974

Quasicontinuum γ decay of Zr 91 , 92 : Benchmarking indirect ( n , γ ) cross section measurements for the s process journal, August 2017

Are the level densities for r - and rp -process nuclei different from nearby nuclei in the valley of stability? journal, May 2001

The Discovery of the Electromagnetic Counterpart of GW170817: Kilonova AT 2017gfo/DLT17ck journal, October 2017

SuN: Summing NaI(Tl) gamma-ray detector for capture reaction measurements journal, March 2013

The AME2016 atomic mass evaluation (II). Tables, graphs and references journal, March 2017

Statistics and the average cross section journal, August 1980

The jina Reaclib Database: its Recent Updates and Impact on Type-I X-Ray Bursts journal, June 2010

Light curves of the neutron star merger GW170817/SSS17a: Implications for r-process nucleosynthesis journal, October 2017

Experimentally constrained ( p , γ ) Y 89 and ( n , γ ) Y 89 reaction rates relevant to p -process nucleosynthesis journal, April 2016

Low-Energy Magnetic Dipole Radiation in Open-Shell Nuclei journal, March 2017

Systematics of the excitation of M1 resonances in medium heavy nuclei by 200 MeV proton inelastic scattering journal, October 1982

Origin of the heavy elements in binary neutron-star mergers from a gravitational-wave event journal, October 2017

Constraining Neutron Capture Cross Sections for Unstable Nuclei with Surrogate Reaction Data and Theory journal, July 2018

Validity of the Generalized Brink-Axel Hypothesis in Np 238 journal, January 2016

Extraction of thermal and electromagnetic properties in Ti 45 journal, October 2009

The SiRi particle-telescope system journal, August 2011

A measurement of the 50Ti(γ, n) and 50Ti(γ, n0) cross sections journal, August 1979

The impact of individual nuclear properties on r -process nucleosynthesis journal, January 2016

Statistical properties of Pu 243 , and Pu 242 ( n , γ ) cross section calculation journal, January 2016

La 137 , 138 , 139 ( n , γ ) cross sections constrained with statistical decay properties of La 138 , 139 , 140 nuclei journal, April 2017

Hauser-Feshbach calculations in the presence of weakly absorbing channels with special reference to the elastic enhancement factor and the factorization assumption journal, June 1980

Fluctuations of Nuclear Reaction Widths journal, October 1956

Direct reactions and Hauser-Feshbach theory journal, April 1975

A Composite Nuclear-Level Density Formula with Shell Corrections journal, August 1965

Excitation of ΔL = 0 spin-flip transitions in the N = 28 isotones by 201 MeV proton inelastic scattering journal, December 1983

Statistical Gamma-Decay at Low Angular Momentum journal, January 1990

Testing the constant-temperature approach for the nuclear level density journal, November 2017

Observation of the M1 giant resonance by resonance averaging in 106Pd journal, June 1987

Swope Supernova Survey 2017a (SSS17a), the optical counterpart to a gravitational wave source journal, October 2017

Experimental energy-dependent nuclear spin distributions journal, November 2009

Examination of the low-energy enhancement of the γ -ray strength function of Fe 56 journal, February 2018

Synthesis of the Elements in Stars journal, October 1957

The magic nature of 132Sn explored through the single-particle states of 133Sn journal, May 2010

Large Low-Energy M 1 Strength for Fe 56 , 57 within the Nuclear Shell Model journal, December 2014

Cosmoradiogenic Chronologies of Nucleosynthesis. journal, February 1964

The first generation of γ-rays from hot nuclei journal, April 1987

Effects of translational invariance violation in particle-hole calculations. Application to 208Pb journal, July 1968

The unfolding of continuum γ-ray spectra journal, June 1996

Test of gamma-ray strength functions in nuclear reaction model calculations journal, May 1990

Systematic study of direct neutron capture journal, October 2012

Photoneutron cross sections for Mo isotopes: A step toward a unified understanding of ( γ , n ) and ( n , γ ) reactions journal, July 2013

Electric Dipole Ground-State Transition Width Strength Function and 7-Mev Photon Interactions journal, April 1962

Verification of detailed balance for γ absorption and emission in Dy isotopes journal, November 2018

GW170817: Observation of Gravitational Waves from a Binary Neutron Star Inspiral journal, October 2017

Novel technique for Constraining r -Process ( n , γ ) Reaction Rates journal, December 2014

Beta decay of Sc 51 to states in Ti 51 journal, October 1976

γ -ray strength function method and its application to Pd 107 journal, December 2010

Modern Nuclear Data Evaluation with the TALYS Code System journal, December 2012

Evidence for the Dipole Nature of the Low-Energy γ Enhancement in Fe 56 journal, December 2013

Neutron physics of the Re/Os clock. I. Measurement of the ( n , γ ) cross sections of Os 186 , 187 , 188 at the CERN n_TOF facility journal, July 2010

Impact of a low-energy enhancement in the γ -ray strength function on the neutron-capture cross section journal, July 2010

Effective interaction for pf -shell nuclei journal, May 2002

Commissioning the A1900 projectile fragment separator journal, May 2003

Local and global nucleon optical models from 1 keV to 200 MeV journal, January 2003

Experimental level densities of atomic nuclei journal, December 2015

Changes in r -process abundances at late times journal, August 2001

Level density and γ -ray strength function in the odd-odd Np 238 nucleus journal, April 2014

Extraction of level density and γ strength function from primary γ spectra journal, June 2000

Nuclear robustness of the r process in neutron-star mergers journal, November 2015

Low-Energy Enhancement of Magnetic Dipole Radiation journal, December 2013

Constraints on the dipole photon strength functions from experimental multistep cascade spectra journal, April 2019

Shell-gap-reduced level densities in Y 89 , 90 journal, October 2014

Electric and Magnetic Dipole Strength at Low Energy journal, July 2017

Evaluation of the fluctuation enhancement factor journal, August 1976

Neutron-capture rates for explosive nucleosynthesis: the case of 68 Ni( n , γ ) 69 Ni journal, February 2017

Decay of Ti 51 and Cr 51 journal, March 1955

Compound-nuclear reaction cross sections from surrogate measurements journal, March 2012

Spectroscopic identification of r-process nucleosynthesis in a double neutron-star merger journal, October 2017

Title: Benchmarking the extraction of statistical neutron capture cross sections on short-lived nuclei for applications using the $β$ -Oslo method

The 48Ca(α, p) 51Sc reaction; experimental results and shell model calculations
journal, August 1967

Low-energy enhancement and fluctuations of γ -ray strength functions in ^56,57 Fe: test of the Brink–Axel hypothesis
journal, April 2017

r -PROCESS NUCLEOSYNTHESIS IN DYNAMICALLY EJECTED MATTER OF NEUTRON STAR MERGERS
journal, August 2011

Nuclear data sensitivity, uncertainty and target accuracy assessment for future nuclear systems
journal, May 2006

Large Enhancement of Radiative Strength for Soft Transitions in the Quasicontinuum
journal, September 2004

Astrophysical Reaction Rates From Statistical Model Calculations
journal, May 2000

RIPL – Reference Input Parameter Library for Calculation of Nuclear Reactions and Nuclear Data Evaluations
journal, December 2009

Spurious center-of-mass motion
journal, December 1974

Quasicontinuum $γ$ decay of ${}^{91, 92}{Zr}$ : Benchmarking indirect ( $n, γ$ ) cross section measurements for the $s$ process
journal, August 2017

Are the level densities for r - and $rp$ -process nuclei different from nearby nuclei in the valley of stability?
journal, May 2001

The Discovery of the Electromagnetic Counterpart of GW170817: Kilonova AT 2017gfo/DLT17ck
journal, October 2017

SuN: Summing NaI(Tl) gamma-ray detector for capture reaction measurements
journal, March 2013

The AME2016 atomic mass evaluation (II). Tables, graphs and references
journal, March 2017

Statistics and the average cross section
journal, August 1980

The jina Reaclib Database: its Recent Updates and Impact on Type-I X-Ray Bursts
journal, June 2010

Light curves of the neutron star merger GW170817/SSS17a: Implications for r-process nucleosynthesis
journal, October 2017

Experimentally constrained $(p, γ) {}^{89}Y$ and $(n, γ) {}^{89}Y$ reaction rates relevant to $p$ -process nucleosynthesis
journal, April 2016

Low-Energy Magnetic Dipole Radiation in Open-Shell Nuclei
journal, March 2017

Systematics of the excitation of M1 resonances in medium heavy nuclei by 200 MeV proton inelastic scattering
journal, October 1982

Origin of the heavy elements in binary neutron-star mergers from a gravitational-wave event
journal, October 2017

Constraining Neutron Capture Cross Sections for Unstable Nuclei with Surrogate Reaction Data and Theory
journal, July 2018

Validity of the Generalized Brink-Axel Hypothesis in ${}^{238}{Np}$
journal, January 2016

Extraction of thermal and electromagnetic properties in ${}^{45}{Ti}$
journal, October 2009

The SiRi particle-telescope system
journal, August 2011

A measurement of the 50Ti(γ, n) and 50Ti(γ, n0) cross sections
journal, August 1979

The impact of individual nuclear properties on $r$ -process nucleosynthesis
journal, January 2016

Statistical properties of ${}^{243}{Pu}$ , and ${}^{242}{Pu} (n, γ)$ cross section calculation
journal, January 2016

${}^{137, 138, 139}{La} (n, γ)$ cross sections constrained with statistical decay properties of ${}^{138, 139, 140}{La}$ nuclei
journal, April 2017

Hauser-Feshbach calculations in the presence of weakly absorbing channels with special reference to the elastic enhancement factor and the factorization assumption
journal, June 1980

Fluctuations of Nuclear Reaction Widths
journal, October 1956

Direct reactions and Hauser-Feshbach theory
journal, April 1975

A Composite Nuclear-Level Density Formula with Shell Corrections
journal, August 1965

Excitation of ΔL = 0 spin-flip transitions in the N = 28 isotones by 201 MeV proton inelastic scattering
journal, December 1983

Statistical Gamma-Decay at Low Angular Momentum
journal, January 1990

Testing the constant-temperature approach for the nuclear level density
journal, November 2017

Observation of the M1 giant resonance by resonance averaging in 106Pd
journal, June 1987

Swope Supernova Survey 2017a (SSS17a), the optical counterpart to a gravitational wave source
journal, October 2017

Experimental energy-dependent nuclear spin distributions
journal, November 2009

Examination of the low-energy enhancement of the $γ$ -ray strength function of ${}^{56}{Fe}$
journal, February 2018

Synthesis of the Elements in Stars
journal, October 1957

The magic nature of 132Sn explored through the single-particle states of 133Sn
journal, May 2010

Large Low-Energy $M 1$ Strength for ${}^{56, 57}{Fe}$ within the Nuclear Shell Model
journal, December 2014

Cosmoradiogenic Chronologies of Nucleosynthesis.
journal, February 1964

The first generation of γ-rays from hot nuclei
journal, April 1987

Effects of translational invariance violation in particle-hole calculations. Application to 208Pb
journal, July 1968

The unfolding of continuum γ-ray spectra
journal, June 1996

Test of gamma-ray strength functions in nuclear reaction model calculations
journal, May 1990

Systematic study of direct neutron capture
journal, October 2012

Photoneutron cross sections for Mo isotopes: A step toward a unified understanding of $(γ, n)$ and $(n, γ)$ reactions
journal, July 2013

Electric Dipole Ground-State Transition Width Strength Function and 7-Mev Photon Interactions
journal, April 1962

Verification of detailed balance for $γ$ absorption and emission in Dy isotopes
journal, November 2018

GW170817: Observation of Gravitational Waves from a Binary Neutron Star Inspiral
journal, October 2017

Novel technique for Constraining $r$ -Process ( $n$ , $γ$ ) Reaction Rates
journal, December 2014

Beta decay of ${}^{51}{Sc}$ to states in ${}^{51}{Ti}$
journal, October 1976

$γ$ -ray strength function method and its application to ${}^{107}{Pd}$
journal, December 2010

Modern Nuclear Data Evaluation with the TALYS Code System
journal, December 2012

Evidence for the Dipole Nature of the Low-Energy $γ$ Enhancement in ${}^{56}{Fe}$
journal, December 2013

Neutron physics of the Re/Os clock. I. Measurement of the ( $n, γ$ ) cross sections of ${}^{186, 187, 188}{Os}$ at the CERN n_TOF facility
journal, July 2010

Impact of a low-energy enhancement in the $γ$ -ray strength function on the neutron-capture cross section
journal, July 2010

Effective interaction for $pf$ -shell nuclei
journal, May 2002

Commissioning the A1900 projectile fragment separator
journal, May 2003

Local and global nucleon optical models from 1 keV to 200 MeV
journal, January 2003

Experimental level densities of atomic nuclei
journal, December 2015

Changes in r -process abundances at late times
journal, August 2001

Level density and $γ$ -ray strength function in the odd-odd ${}^{238}{Np}$ nucleus
journal, April 2014

Extraction of level density and γ strength function from primary γ spectra
journal, June 2000

Nuclear robustness of the $r$ process in neutron-star mergers
journal, November 2015

Low-Energy Enhancement of Magnetic Dipole Radiation
journal, December 2013

Constraints on the dipole photon strength functions from experimental multistep cascade spectra
journal, April 2019

Shell-gap-reduced level densities in ${}^{89, 90}Y$
journal, October 2014

Electric and Magnetic Dipole Strength at Low Energy
journal, July 2017

Evaluation of the fluctuation enhancement factor
journal, August 1976

Neutron-capture rates for explosive nucleosynthesis: the case of ⁶⁸ Ni( n , γ ) ⁶⁹ Ni
journal, February 2017

Decay of ${Ti}^{51}$ and ${Cr}^{51}$
journal, March 1955

Compound-nuclear reaction cross sections from surrogate measurements
journal, March 2012

Spectroscopic identification of r-process nucleosynthesis in a double neutron-star merger
journal, October 2017

A statistical analysis of excited nuclear states
journal, May 1959

Entropy Driven Excitation Energy Sorting in Superfluid Fission Dynamics
journal, May 2010

Systematics of nuclear level density parameters
journal, October 2005