Evolution of E2 strength in the rare-earth isotopes Hf174,176,178,180

Wiederhold, J.; Werner, V.; Kern, R.; Pietralla, N.; Bucurescu, D.; Carroll, R.; Cooper, N.; Daniel, T.; Filipescu, D.; Florea, N.; Gerst, R-B.; Ghita, D.; Gurgi, L.; Jolie, J.; Ilieva, R. S.; Lica, R.; Marginean, N.; Marginean, R.; Mihai, C.; Mitu, I. O.; Naqvi, F.; Nita, C.; Rudigier, M.; Stegemann, S.; Pascu, S.; Regan, P. H.

doi:10.1103/physrevc.99.024316

Title: Evolution of $E 2$ strength in the rare-earth isotopes ${}^{174, 176, 178, 180}{Hf}$

Abstract

Mean lifetimes of yrast states of the isotopes ^{174,176,178,180}Hf have been measured using fast-electronic scintillation timing. Excited states of ^174,176,178Hf were populated via β decay, while ¹⁸⁰Hf was populated via Coulomb excitation. The lifetimes of the 2⁺₁ and 4⁺₁ states of all isotopes and the lifetimes of the 6⁺₁ states of ^174,178Hf were measured, using the slope and the centroid shift methods. The mean lifetime, τ(4⁺₁) = 85 (13) ps, of ¹⁷⁸Hf has been determined for the first time. In addition, the mean lifetimes of the 2^–₁ and the 3^–₁ states of ¹⁷⁶Hf have been determined. Systematic uncertainties on the evolution of data as a function of neutron number were reduced by using the same setup for all the isotopes of interest. The data are in agreement with other recent lifetime measurements where available and shows a shift of the maximum of collectivity for the Hf isotopic chain from neutron midshell at N = 104 to N = 100.

Authors:

Wiederhold, J. ^[1]; Werner, V. ^[2]; Kern, R. ^[1]; Pietralla, N. ^[1]; Bucurescu, D. ^[3]; Carroll, R. ^[4]; Cooper, N. ^[5]; Daniel, T. ^[6]; Filipescu, D. ^[3]; Florea, N. ^[3]; Gerst, R-B. ^[7]; Ghita, D. ^[3]; Gurgi, L. ^[4]; Jolie, J. ^[7]; Ilieva, R. S. ^[8]; Lica, R. ^[3]; Marginean, N. ^[3]; Marginean, R. ^[3]; Mihai, C. ^[3]; Mitu, I. O. ^[3] more »

Technische Univ. Darmstadt (Germany)
Technische Univ. Darmstadt (Germany); Yale Univ., New Haven, CT (United States)
“Horia Hulubei” National Inst. for Physics and Nuclear Engineering, Bucharest-Magurele (Romania)
Univ. of Surrey (United Kingdom)
Yale Univ., New Haven, CT (United States); Univ. of Notre Dame, IN (United States)
Univ. of Surrey (United Kingdom); Benue State Univ., Makurdi (Nigeria)
Univ. zu Koln (Germany)
Yale Univ., New Haven, CT (United States); Univ. of Surrey (United Kingdom)
Yale Univ., New Haven, CT (United States)
Univ. of Surrey (United Kingdom); Univ. zu Koln (Germany)
Univ. zu Koln (Germany); KU Leuven (Belgium)
Univ. of Surrey (United Kingdom); National Physical Lab., Middlesex (United Kingdom)

Publication Date:: Thu Feb 21 00:00:00 EST 2019

Research Org.:: Yale Univ., New Haven, CT (United States)

Sponsoring Org.:: USDOE Office of Science (SC)

OSTI Identifier:: 1610164

Alternate Identifier(s):: OSTI ID: 1546159

Grant/Contract Number:: FG02-91ER40609

Resource Type:: Accepted Manuscript

Journal Name:: Physical Review C

Additional Journal Information:: Journal Volume: 99; 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; physics; lifetimes & widths; nuclear structure & decays; 150 ≤ A ≤ 189; gamma ray spectroscopy

Citation Formats


                    Wiederhold, J., Werner, V., Kern, R., Pietralla, N., Bucurescu, D., Carroll, R., Cooper, N., Daniel, T., Filipescu, D., Florea, N., Gerst, R-B., Ghita, D., Gurgi, L., Jolie, J., Ilieva, R. S., Lica, R., Marginean, N., Marginean, R., Mihai, C., Mitu, I. O., Naqvi, F., Nita, C., Rudigier, M., Stegemann, S., Pascu, S., and Regan, P. H. Evolution of E2 strength in the rare-earth isotopes Hf174,176,178,180.  United States: N. p., 2019. 
Web.  doi:10.1103/physrevc.99.024316.

Copy to clipboard


                    Wiederhold, J., Werner, V., Kern, R., Pietralla, N., Bucurescu, D., Carroll, R., Cooper, N., Daniel, T., Filipescu, D., Florea, N., Gerst, R-B., Ghita, D., Gurgi, L., Jolie, J., Ilieva, R. S., Lica, R., Marginean, N., Marginean, R., Mihai, C., Mitu, I. O., Naqvi, F., Nita, C., Rudigier, M., Stegemann, S., Pascu, S., & Regan, P. H. Evolution of E2 strength in the rare-earth isotopes Hf174,176,178,180.  United States.  https://doi.org/10.1103/physrevc.99.024316

Copy to clipboard


                    Wiederhold, J., Werner, V., Kern, R., Pietralla, N., Bucurescu, D., Carroll, R., Cooper, N., Daniel, T., Filipescu, D., Florea, N., Gerst, R-B., Ghita, D., Gurgi, L., Jolie, J., Ilieva, R. S., Lica, R., Marginean, N., Marginean, R., Mihai, C., Mitu, I. O., Naqvi, F., Nita, C., Rudigier, M., Stegemann, S., Pascu, S., and Regan, P. H. Thu .  
"Evolution of E2 strength in the rare-earth isotopes Hf174,176,178,180".  United States.  https://doi.org/10.1103/physrevc.99.024316.  https://www.osti.gov/servlets/purl/1610164.

Copy to clipboard


                    
@article{osti_1610164,

  title        = {Evolution of E2 strength in the rare-earth isotopes Hf174,176,178,180},

  author       = {Wiederhold, J. and Werner, V. and Kern, R. and Pietralla, N. and Bucurescu, D. and Carroll, R. and Cooper, N. and Daniel, T. and Filipescu, D. and Florea, N. and Gerst, R-B. and Ghita, D. and Gurgi, L. and Jolie, J. and Ilieva, R. S. and Lica, R. and Marginean, N. and Marginean, R. and Mihai, C. and Mitu, I. O. and Naqvi, F. and Nita, C. and Rudigier, M. and Stegemann, S. and Pascu, S. and Regan, P. H.},

  abstractNote = {Mean lifetimes of yrast states of the isotopes 174,176,178,180Hf have been measured using fast-electronic scintillation timing. Excited states of 174,176,178Hf were populated via β decay, while 180Hf was populated via Coulomb excitation. The lifetimes of the 2+1 and 4+1 states of all isotopes and the lifetimes of the 6+1 states of 174,178Hf were measured, using the slope and the centroid shift methods. The mean lifetime, τ(4+1) = 85 (13) ps, of 178Hf has been determined for the first time. In addition, the mean lifetimes of the 2–1 and the 3–1 states of 176Hf have been determined. Systematic uncertainties on the evolution of data as a function of neutron number were reduced by using the same setup for all the isotopes of interest. The data are in agreement with other recent lifetime measurements where available and shows a shift of the maximum of collectivity for the Hf isotopic chain from neutron midshell at N = 104 to N = 100.},

  doi          = {10.1103/physrevc.99.024316},

  journal      = {Physical Review C},

  number       = 2,

  volume       = 99,

  place        = {United States},

  year         = {Thu Feb 21 00:00:00 EST 2019},

  month        = {Thu Feb 21 00:00:00 EST 2019}

}

Copy to clipboard

Journal Article:

Free Publicly Available Full Text

Accepted Manuscript (DOE)

Publisher's Version of Record

https://doi.org/10.1103/physrevc.99.024316

Other availability

Search WorldCat to find libraries that may hold this journal

Citation Metrics:

Cited by: 6 works

Citation information provided by
Web of Science

Figures / Tables:

FIG. 1: (a) Systematics of g factors of first excited 2$^{+}_{1}$ states of even-even nuclei around neutron number N = 104 (marked with grey-dashed line) of Er, Yb, Hf, W and Os isotopes. The g factor values seem to saturate around (or slightly below) N = 104 apart from themore »

All figures and tables (12 total)

Save / Share:

Export Metadata

Save to My Library

Works referenced in this record:

Direct Empirical Correlation between Proton-Neutron Interaction Strengths and the Growth of Collectivity in Nuclei
journal, April 2006

Cakirli, R. B.; Casten, R. F.
Physical Review Letters, Vol. 96, Issue 13
DOI: 10.1103/PhysRevLett.96.132501

Empirical proton-neutron interaction energies. Linearity and saturation phenomena
journal, August 1989

Zhang, J. -Y.; Casten, R. F.; Brenner, D. S.
Physics Letters B, Vol. 227, Issue 1
DOI: 10.1016/0370-2693(89)91273-2

Systematics of $g$ factors of $2_{1}^{+}$ states in even-even nuclei from Gd to Pt: A microscopic description by the projected shell model
journal, January 2007

Bian, Bao-An; Di, Yao-Min; Long, Gui-Lu
Physical Review C, Vol. 75, Issue 1
DOI: 10.1103/PhysRevC.75.014312

Nuclear Data Sheets for A = 174
journal, May 1999

Browne, E.; Junde, Huo
Nuclear Data Sheets, Vol. 87, Issue 1
DOI: 10.1006/ndsh.1999.0015

Nuclear Data Sheets for A = 176
journal, April 2006

Basunia, M. S.
Nuclear Data Sheets, Vol. 107, Issue 4
DOI: 10.1016/j.nds.2006.03.001

Evolution of collectivity near mid-shell from excited-state lifetime measurements in rare earth nuclei
journal, March 2016

Werner, V.; Cooper, N.; Régis, J. -M.
Physical Review C, Vol. 93, Issue 3
DOI: 10.1103/PhysRevC.93.034323

Photon scattering experiments off $^{176} Hf$ and the systematics of low-lying dipole modes in the stable even-even Hf isotopes $^{176, 178, 180} Hf$
journal, June 2003

Scheck, M.; Belic, D.; von Brentano, P.
Physical Review C, Vol. 67, Issue 6
DOI: 10.1103/PhysRevC.67.064313

Nuclear Data Sheets for A = 168
journal, July 2010

Baglin, Coral M.
Nuclear Data Sheets, Vol. 111, Issue 7
DOI: 10.1016/j.nds.2010.07.001

Nuclear Shapes Studied by Coulomb Excitation
journal, December 1986

Cline, D.
Annual Review of Nuclear and Particle Science, Vol. 36, Issue 1
DOI: 10.1146/annurev.ns.36.120186.003343

Intrinsic Quadrupole Moments and Shapes of Nuclear Ground States and Excited States
journal, January 1972

Kumar, Krishna
Physical Review Letters, Vol. 28, Issue 4
DOI: 10.1103/PhysRevLett.28.249

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

The AME2016 atomic mass evaluation (I). Evaluation of input data; and adjustment procedures
journal, March 2017

Huang, W. J.; Audi, G.; Wang, Meng
Chinese Physics C, Vol. 41, Issue 3
DOI: 10.1088/1674-1137/41/3/030002

Consistent interpretation of B ( E 2) values and g factors in deformed nuclei
journal, March 2006

Zhang, Jing-ye; Casten, R. F.; Wolf, A.
Physical Review C, Vol. 73, Issue 3
DOI: 10.1103/PhysRevC.73.037301

Tables of E2 transition probabilities from the first $2^{+}$ states in even–even nuclei
journal, January 2016

Pritychenko, B.; Birch, M.; Singh, B.
Atomic Data and Nuclear Data Tables, Vol. 107
DOI: 10.1016/j.adt.2015.10.001

Lifetime of the first excited state in 172W and 178W
journal, December 2010

Rudigier, M.; Régis, J. -M.; Jolie, J.
Nuclear Physics A, Vol. 847, Issue 1-2
DOI: 10.1016/j.nuclphysa.2010.07.003

Nuclear ground-state masses and deformations: FRDM(2012)
journal, May 2016

Möller, P.; Sierk, A. J.; Ichikawa, T.
Atomic Data and Nuclear Data Tables, Vol. 109-110
DOI: 10.1016/j.adt.2015.10.002

Sub-nanosecond lifetime measurements using the Double Orange Spectrometer at the cologne 10MV Tandem accelerator
journal, July 2009

Régis, J. -M.; Materna, Th.; Christen, S.
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 606, Issue 3
DOI: 10.1016/j.nima.2009.04.008

Nuclear Data Sheets for A = 178
journal, July 2009

Achterberg, E.; Capurro, O. A.; Marti, G. V.
Nuclear Data Sheets, Vol. 110, Issue 7
DOI: 10.1016/j.nds.2009.05.002

Simple relations among E2 matrix elements of low-lying collective states
journal, November 2001

Werner, V.; von Brentano, P.; Jolos, R. V.
Physics Letters B, Vol. 521, Issue 3-4
DOI: 10.1016/S0370-2693(01)01191-1

Low-K bands in 176Hf populated in the (α, 2n) reaction
journal, February 1973

Khoo, T. L.; Waddington, J. C.; Preibisz, Z.
Nuclear Physics A, Vol. 202, Issue 2
DOI: 10.1016/0375-9474(73)90225-X

Excited States of ${}^{174}{Hf}$ from the Decay of ${}^{174}{Ta}$
journal, October 1971

Gillin, M. T.; Peek, N. F.
Physical Review C, Vol. 4, Issue 4
DOI: 10.1103/PhysRevC.4.1334

$g$ factor of the $2_{1}^{+}$ state of ${}^{164}{Yb}$
journal, March 2004

Berant, Z.; Wolf, A.; Zamfir, N. V.
Physical Review C, Vol. 69, Issue 3
DOI: 10.1103/PhysRevC.69.034320

Lifetime measurement for the $2_{1}^{+}$ state of ${}^{170}{Hf}$
journal, December 2006

Costin, A.; Ahn, T.; Bochev, B.
Physical Review C, Vol. 74, Issue 6
DOI: 10.1103/PhysRevC.74.067301

The ROSPHERE γ-ray spectroscopy array
journal, November 2016

Bucurescu, D.; Căta-Danil, I.; Ciocan, G.
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 837
DOI: 10.1016/j.nima.2016.08.052

Nuclear Data Sheets for A = 162
journal, September 2007

Reich, C. W.
Nuclear Data Sheets, Vol. 108, Issue 9
DOI: 10.1016/j.nds.2007.07.002

Nuclear Data Sheets for
journal, July 2005

Reich, C. W.
Nuclear Data Sheets, Vol. 105, Issue 3
DOI: 10.1016/j.nds.2005.08.001

Nuclear Data Sheets for A = 182
journal, December 2015

Singh, Balraj
Nuclear Data Sheets, Vol. 130
DOI: 10.1016/j.nds.2015.11.002

Nuclear Data Sheets for A=158
journal, March 2017

Nica, N.
Nuclear Data Sheets, Vol. 141
DOI: 10.1016/j.nds.2017.03.001

Nuclear Data Sheets for A=164
journal, January 2018

Singh, Balraj; Chen, Jun
Nuclear Data Sheets, Vol. 147
DOI: 10.1016/j.nds.2018.01.001

The evolution of nuclear structure: the scheme and related correlations
journal, November 1996

Casten, R. F.; Zamfir, N. V.
Journal of Physics G: Nuclear and Particle Physics, Vol. 22, Issue 11
DOI: 10.1088/0954-3899/22/11/002

Evaluation of theoretical conversion coefficients using BrIcc
journal, May 2008

Kibédi, T.; Burrows, T. W.; Trzhaskovskaya, M. B.
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 589, Issue 2
DOI: 10.1016/j.nima.2008.02.051

Decays of ${}^{176}{Ta}$ , ${}^{176}{Lu}$ , and ${}^{176 m}{Lu}$ to Levels in ${}^{176}{Hf}$
journal, March 1971

Bernthal, F. M.; Rasmussen, J. O.; Hollander, J. M.
Physical Review C, Vol. 3, Issue 3
DOI: 10.1103/PhysRevC.3.1294

In-beam measurements of sub-nanosecond nuclear lifetimes with a mixed array of HPGe and LaBr3:Ce detectors
journal, October 2010

Mărginean, N.; Balabanski, D. L.; Bucurescu, D.
The European Physical Journal A, Vol. 46, Issue 3
DOI: 10.1140/epja/i2010-11052-7

Nuclear Data Sheets for A = 156
journal, November 2012

Reich, C. W.
Nuclear Data Sheets, Vol. 113, Issue 11
DOI: 10.1016/j.nds.2012.10.003

Numerical analysis of the time spectrum of delayed coincidences, I
journal, September 1966

Boström, L.; Olsen, B.; Schneider, W.
Nuclear Instruments and Methods, Vol. 44, Issue 1
DOI: 10.1016/0029-554X(66)90433-2

Fast-timing lifetime measurement of ${}^{152}{Gd}$
journal, October 2016

Wiederhold, J.; Kern, R.; Lizarazo, C.
Physical Review C, Vol. 94, Issue 4
DOI: 10.1103/PhysRevC.94.044302

Proton-Neutron Interactions and the New Atomic Masses
journal, March 2005

Cakirli, R. B.; Brenner, D. S.; Casten, R. F.
Physical Review Letters, Vol. 94, Issue 9
DOI: 10.1103/PhysRevLett.94.092501

Hexadecapole deformations in actinide and trans-actinide nuclei
journal, September 1995

Zamfir, N. V.; Hering, G.; Casten, R. F.
Physics Letters B, Vol. 357, Issue 4
DOI: 10.1016/0370-2693(95)00978-T

Indication of a mini-valence Wigner-like energy in heavy nuclei
journal, December 2010

Cakirli, R. B.; Blaum, K.; Casten, R. F.
Physical Review C, Vol. 82, Issue 6
DOI: 10.1103/PhysRevC.82.061304

Nuclear Data Sheets for A = 172
journal, June 1995

Singh, Balraj
Nuclear Data Sheets, Vol. 75, Issue 2
DOI: 10.1006/ndsh.1995.1025

A method for picosecond lifetime measurements for neutron-rich nuclei
journal, May 1989

Moszyński, M.; Mach, H.
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 277, Issue 2-3
DOI: 10.1016/0168-9002(89)90770-5

The mirror symmetric centroid difference method for picosecond lifetime measurements via <mml:math altimg="si0047.gif" overflow="scroll" xmlns:xocs="http://www.elsevier.com/xml/xocs/dtd" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://www.elsevier.com/xml/ja/dtd" xmlns:ja="http://www.elsevier.com/xml/ja/dtd" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:tb="http://www.elsevier.com/xml/common/table/dtd" xmlns:sb="http://www.elsevier.com/xml/common/struct-bib/dtd" xmlns:ce="http://www.elsevier.com/xml/common/dtd" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:cals="http://www.elsevier.com/xml/common/cals/dtd"><mml:mi mathvariant="normal">γ</mml:mi><mml:mo>–</mml:mo><mml:mi mathvariant="normal">γ</mml:mi></mml:math> coincidences using very fast LaBr3(Ce) scintillator detectors
journal, October 2010

Régis, J. -M.; Pascovici, G.; Jolie, J.
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 622, Issue 1
DOI: 10.1016/j.nima.2010.07.047

Evolution of $E 2$ transition strength in deformed hafnium isotopes from new measurements on ${}^{172}{Hf}, {}^{174}{Hf}$ , and ${}^{176}{Hf}$
journal, April 2015

Rudigier, M.; Nomura, K.; Dannhoff, M.
Physical Review C, Vol. 91, Issue 4
DOI: 10.1103/PhysRevC.91.044301

Nuclear Data Sheets for A = 180
journal, May 2015

McCutchan, E. A.
Nuclear Data Sheets, Vol. 126
DOI: 10.1016/j.nds.2015.05.002

A method for picosecond lifetime measurements for neutron-rich nuclei
journal, August 1989

Mach, H.; Gill, R. L.; Moszyński, M.
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 280, Issue 1
DOI: 10.1016/0168-9002(89)91272-2

E1-M2-E3 mixing of the 1159.3 keV transition in 176Hf
journal, January 1972

Löbner, K. E. G.; Smith, H. A.; Bunker, M. E.
Nuclear Physics A, Vol. 179, Issue 2
DOI: 10.1016/0375-9474(72)90369-7

Calculation of Decay Times from Coincidence Experiments
journal, February 1950

Bay, Z.
Physical Review, Vol. 77, Issue 3
DOI: 10.1103/PhysRev.77.419

Nuclear Data Sheets for A = 170
journal, August 2002

Baglin, Coral M.
Nuclear Data Sheets, Vol. 96, Issue 4
DOI: 10.1006/ndsh.2002.0015

Lifetime measurements of yrast states in ${}^{162}{Yb}$ and ${}^{166}{Hf}$
journal, March 2006

McCutchan, E. A.; Zamfir, N. V.; Casten, R. F.
Physical Review C, Vol. 73, Issue 3
DOI: 10.1103/PhysRevC.73.034303

The generalized centroid difference method for picosecond sensitive determination of lifetimes of nuclear excited states using large fast-timing arrays
journal, October 2013

Régis, J. -M.; Mach, H.; Simpson, G. S.
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 726
DOI: 10.1016/j.nima.2013.05.126

Nuclear Data Sheets for A = 166
journal, May 2008

Baglin, Coral M.
Nuclear Data Sheets, Vol. 109, Issue 5
DOI: 10.1016/j.nds.2008.04.001

Figures / Tables found in this record:

Figures/Tables have been extracted from DOE-funded journal article accepted manuscripts.

Similar Records in DOE PAGES and OSTI.GOV collections:

Intrinsic electric quadrupole moment of the $K^{π} = 8^{-}$ isomeric state in ${}^{178}{Hf}$

Journal Article Zhu, Shaofei - Physical Review C

The lifetime of the 9^- state in the rotational band based on the 4.0 s, K ^π = 8^-, isomeric state (¹⁷⁸Hf^m₁) from the decay of the 31-yr isomer (¹⁷⁸Hf^m₂) was determined to be 99(2) ps by means of the fast-timing technique using two LaBr₃ (Ce) scintillators. The δ (E2/M1) mixing ratios of the ΔI = 1 γ rays depopulating levels in this band were deduced from γ-γ angular correlations by using a ¹⁷⁸Hf^m₂ radioactive source located at the center of the Gammasphere HPGe detector array. The new results, together with previous spectroscopic information, provide a different way to extractmore »« less
https://doi.org/10.1103/PhysRevC.102.044326

Full Text Available
Toward the limit of nuclear binding on the $N = Z$ line: Spectroscopy of ${}^{96}{Cd}$

Journal Article Davies, P. J. ; Park, J. ; Grawe, H. ; ... - Physical Review C

A γ-decaying isomeric state (τ_1/2 =more »« less
Cited by 9
https://doi.org/10.1103/physrevc.99.021302

Full Text Available
Lifetime measurements in the even-even ${}_{102 - 108}{Cd}$ isotopes

Journal Article Siciliano, M. ; Valiente-Dobón, J. J. ; Goasduff, A. ; ... - Physical Review C

Tmore »« less
https://doi.org/10.1103/physrevc.104.034320

Full Text Available
Persistence of collective behavior at high spin in the $N = 88$ nucleus ${}^{153}{Tb}$

Journal Article Hartley, D. J. ; Riley, M. A. ; Wang, X. ; ... - Physical Review. C, Nuclear Physics

Excited states in the N = 88 nucleus ¹⁵³Tb were observed up to spin ~40 in an experiment utilizing the Gammasphere array. The ¹⁵³Tb states were populated in a weak α4n evaporation channel of the ³⁷Cl + ¹²⁴Sn reaction. Two previously known sequences were extended to higher spins, and a new decoupled structure was identified. The πh_11/2 band was observed in the spin region where other N = 88 isotopes exhibit effects of prolate to oblate shape changes leading to band termination along the yrast line, whereas ¹⁵³Tb displays a persistent collective behavior. Furthermore, minor perturbations of the very highestmore »« less
https://doi.org/10.1103/PhysRevC.91.057301
New lifetime measurements in ${}^{109}{Pd}$ and the onset of deformation at $N = 60$

Journal Article Bucher, B. ; Mach, H. ; Aprahamian, A. ; ... - Physical Review C, Nuclear Physics

We measured several new subnanosecond lifetimes in ¹⁰⁹Pd using the fast-timing βγ γ (t ) method. Fission fragments of the A = 109 mass chain were produced by bombarding natural uranium with 30 MeV protons at the Jyväskylä Ion Guide Isotope Separator On-Line (IGISOL) facility. We obtained lifetimes for excited states in ₁₀₉Pd populated following β decay of ¹⁰⁹Rh. The new lifetimes provide some insight into the evolution of nuclear structure in this mass region. In particular, the distinct structure of the two low-lying 7/2+ states occurring systematically across the Pd isotopic chain is supported by the new lifetime measurements.more »« less
Cited by 5
https://doi.org/10.1103/PhysRevC.92.064312

Full Text Available

Similar Records

Title: Evolution of E 2 strength in the rare-earth isotopes Hf 174 , 176 , 178 , 180

Abstract

Citation Formats

Figures / Tables:

Direct Empirical Correlation between Proton-Neutron Interaction Strengths and the Growth of Collectivity in Nuclei journal, April 2006

Empirical proton-neutron interaction energies. Linearity and saturation phenomena journal, August 1989

Systematics of g factors of 2 1 + states in even-even nuclei from Gd to Pt: A microscopic description by the projected shell model journal, January 2007

Nuclear Data Sheets for A = 174 journal, May 1999

Nuclear Data Sheets for A = 176 journal, April 2006

Evolution of collectivity near mid-shell from excited-state lifetime measurements in rare earth nuclei journal, March 2016

Photon scattering experiments off 176 Hf and the systematics of low-lying dipole modes in the stable even-even Hf isotopes 1 7 6 , 1 7 8 , 1 8 0 Hf journal, June 2003

Nuclear Data Sheets for A = 168 journal, July 2010

Nuclear Shapes Studied by Coulomb Excitation journal, December 1986

Intrinsic Quadrupole Moments and Shapes of Nuclear Ground States and Excited States journal, January 1972

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

The AME2016 atomic mass evaluation (I). Evaluation of input data; and adjustment procedures journal, March 2017

Consistent interpretation of B ( E 2) values and g factors in deformed nuclei journal, March 2006

Tables of E2 transition probabilities from the first 2 + states in even–even nuclei journal, January 2016

Lifetime of the first excited state in 172W and 178W journal, December 2010

Nuclear ground-state masses and deformations: FRDM(2012) journal, May 2016

Sub-nanosecond lifetime measurements using the Double Orange Spectrometer at the cologne 10MV Tandem accelerator journal, July 2009

Nuclear Data Sheets for A = 178 journal, July 2009

Simple relations among E2 matrix elements of low-lying collective states journal, November 2001

Low-K bands in 176Hf populated in the (α, 2n) reaction journal, February 1973

Excited States of Hf 174 from the Decay of Ta 174 journal, October 1971

g factor of the 2 1 + state of Yb 164 journal, March 2004

Lifetime measurement for the 2 1 + state of Hf 170 journal, December 2006

The ROSPHERE γ-ray spectroscopy array journal, November 2016

Nuclear Data Sheets for A = 162 journal, September 2007

Nuclear Data Sheets for journal, July 2005

Nuclear Data Sheets for A = 182 journal, December 2015

Nuclear Data Sheets for A=158 journal, March 2017

Nuclear Data Sheets for A=164 journal, January 2018

The evolution of nuclear structure: the scheme and related correlations journal, November 1996

Evaluation of theoretical conversion coefficients using BrIcc journal, May 2008

Decays of Ta 176 , Lu 176 , and Lu 1 7 6 m to Levels in Hf 176 journal, March 1971

In-beam measurements of sub-nanosecond nuclear lifetimes with a mixed array of HPGe and LaBr3:Ce detectors journal, October 2010

Nuclear Data Sheets for A = 156 journal, November 2012

Numerical analysis of the time spectrum of delayed coincidences, I journal, September 1966

Fast-timing lifetime measurement of Gd 152 journal, October 2016

Proton-Neutron Interactions and the New Atomic Masses journal, March 2005

Hexadecapole deformations in actinide and trans-actinide nuclei journal, September 1995

Indication of a mini-valence Wigner-like energy in heavy nuclei journal, December 2010

Nuclear Data Sheets for A = 172 journal, June 1995

A method for picosecond lifetime measurements for neutron-rich nuclei journal, May 1989

Evolution of E 2 transition strength in deformed hafnium isotopes from new measurements on Hf 172 , Hf 174 , and Hf 176 journal, April 2015

Nuclear Data Sheets for A = 180 journal, May 2015

A method for picosecond lifetime measurements for neutron-rich nuclei journal, August 1989

E1-M2-E3 mixing of the 1159.3 keV transition in 176Hf journal, January 1972

Calculation of Decay Times from Coincidence Experiments journal, February 1950

Nuclear Data Sheets for A = 170 journal, August 2002

Lifetime measurements of yrast states in Yb 162 and Hf 166 journal, March 2006

The generalized centroid difference method for picosecond sensitive determination of lifetimes of nuclear excited states using large fast-timing arrays journal, October 2013

Nuclear Data Sheets for A = 166 journal, May 2008

Title: Evolution of $E 2$ strength in the rare-earth isotopes ${}^{174, 176, 178, 180}{Hf}$

Direct Empirical Correlation between Proton-Neutron Interaction Strengths and the Growth of Collectivity in Nuclei
journal, April 2006

Empirical proton-neutron interaction energies. Linearity and saturation phenomena
journal, August 1989

Systematics of $g$ factors of $2_{1}^{+}$ states in even-even nuclei from Gd to Pt: A microscopic description by the projected shell model
journal, January 2007

Nuclear Data Sheets for A = 174
journal, May 1999

Nuclear Data Sheets for A = 176
journal, April 2006

Evolution of collectivity near mid-shell from excited-state lifetime measurements in rare earth nuclei
journal, March 2016

Photon scattering experiments off $^{176} Hf$ and the systematics of low-lying dipole modes in the stable even-even Hf isotopes $^{176, 178, 180} Hf$
journal, June 2003

Nuclear Data Sheets for A = 168
journal, July 2010

Nuclear Shapes Studied by Coulomb Excitation
journal, December 1986

Intrinsic Quadrupole Moments and Shapes of Nuclear Ground States and Excited States
journal, January 1972

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

The AME2016 atomic mass evaluation (I). Evaluation of input data; and adjustment procedures
journal, March 2017

Consistent interpretation of B ( E 2) values and g factors in deformed nuclei
journal, March 2006

Tables of E2 transition probabilities from the first $2^{+}$ states in even–even nuclei
journal, January 2016

Lifetime of the first excited state in 172W and 178W
journal, December 2010

Nuclear ground-state masses and deformations: FRDM(2012)
journal, May 2016

Sub-nanosecond lifetime measurements using the Double Orange Spectrometer at the cologne 10MV Tandem accelerator
journal, July 2009

Nuclear Data Sheets for A = 178
journal, July 2009

Simple relations among E2 matrix elements of low-lying collective states
journal, November 2001

Low-K bands in 176Hf populated in the (α, 2n) reaction
journal, February 1973

Excited States of ${}^{174}{Hf}$ from the Decay of ${}^{174}{Ta}$
journal, October 1971

$g$ factor of the $2_{1}^{+}$ state of ${}^{164}{Yb}$
journal, March 2004

Lifetime measurement for the $2_{1}^{+}$ state of ${}^{170}{Hf}$
journal, December 2006

The ROSPHERE γ-ray spectroscopy array
journal, November 2016

Nuclear Data Sheets for A = 162
journal, September 2007

Nuclear Data Sheets for
journal, July 2005

Nuclear Data Sheets for A = 182
journal, December 2015

Nuclear Data Sheets for A=158
journal, March 2017

Nuclear Data Sheets for A=164
journal, January 2018

The evolution of nuclear structure: the scheme and related correlations
journal, November 1996

Evaluation of theoretical conversion coefficients using BrIcc
journal, May 2008

Decays of ${}^{176}{Ta}$ , ${}^{176}{Lu}$ , and ${}^{176 m}{Lu}$ to Levels in ${}^{176}{Hf}$
journal, March 1971

In-beam measurements of sub-nanosecond nuclear lifetimes with a mixed array of HPGe and LaBr3:Ce detectors
journal, October 2010

Nuclear Data Sheets for A = 156
journal, November 2012

Numerical analysis of the time spectrum of delayed coincidences, I
journal, September 1966

Fast-timing lifetime measurement of ${}^{152}{Gd}$
journal, October 2016

Proton-Neutron Interactions and the New Atomic Masses
journal, March 2005

Hexadecapole deformations in actinide and trans-actinide nuclei
journal, September 1995

Indication of a mini-valence Wigner-like energy in heavy nuclei
journal, December 2010

Nuclear Data Sheets for A = 172
journal, June 1995

A method for picosecond lifetime measurements for neutron-rich nuclei
journal, May 1989

Evolution of $E 2$ transition strength in deformed hafnium isotopes from new measurements on ${}^{172}{Hf}, {}^{174}{Hf}$ , and ${}^{176}{Hf}$
journal, April 2015

Nuclear Data Sheets for A = 180
journal, May 2015

A method for picosecond lifetime measurements for neutron-rich nuclei
journal, August 1989

E1-M2-E3 mixing of the 1159.3 keV transition in 176Hf
journal, January 1972

Calculation of Decay Times from Coincidence Experiments
journal, February 1950

Nuclear Data Sheets for A = 170
journal, August 2002

Lifetime measurements of yrast states in ${}^{162}{Yb}$ and ${}^{166}{Hf}$
journal, March 2006

The generalized centroid difference method for picosecond sensitive determination of lifetimes of nuclear excited states using large fast-timing arrays
journal, October 2013

Nuclear Data Sheets for A = 166
journal, May 2008