57Zn β-delayed proton emission establishes the 56Ni rp-process waiting point bypass

Saxena, M.; Ong, W. -J.; Meisel, Z.; Hoff, D. E. M.; Smirnova, N.; Bender, P. C.; Burcher, S. P.; Carpenter, M. P.; Carroll, J. J.; Chester, A.; Chiara, C. J.; Conaway, R.; Copp, P. A.; Crider, B. P.; Derkin, J.; Estradé, A.; Hamad, G.; Harke, J. T.; Jain, R.; Jayatissa, H.; Liddick, S. N.; Longfellow, B.; Mogannam, M.; Montes, F.; Nepal, N.; Ogunbeku, T. H.; Richard, A. L.; Schatz, H.; Soltesz, D.; Subedi, S. K.; Sultana, I.; Tamashiro, A. S.; Tripathi, V.; Xiao, Y.; Zink, R.

doi:10.1016/j.physletb.2022.137059

⁵⁷Zn β-delayed proton emission establishes the ⁵⁶Ni rp-process waiting point bypass

Journal Article · Mon Apr 04 00:00:00 EDT 2022 · Physics Letters. B

DOI:https://doi.org/10.1016/j.physletb.2022.137059· OSTI ID:1864489

^[1]; Ong, W. -J. ^[2]; ^[3]; Hoff, D. E. M. ^[4]; Smirnova, N. ^[5]; Bender, P. C. ^[6]; ^[2]; Carpenter, M. P. ^[7]; ^[8]; Chester, A. ^[9]; ^[8]; Conaway, R. ^[3]; Copp, P. A. ^[7]; Crider, B. P. ^[10]; ^[3]; Estradé, A. ^[11]; Hamad, G. ^[3]; Harke, J. T. ^[2]; ^[9]; ^[7] more »

Ohio Univ., Athens, OH (United States); Michigan State University
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Ohio Univ., Athens, OH (United States)
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Univ. of Massachusetts, Lowell, MA (United States)
CNRS/IN2P3 and Univ. de Bordeaux, Gradignan Cedex (France)
Univ. of Massachusetts, Lowell, MA (United States)
Argonne National Lab. (ANL), Argonne, IL (United States)
DEVCOM/Army Research Lab., Adelphi, MD (United States)
Michigan State Univ., East Lansing, MI (United States)
Mississippi State Univ., Starkville, MS (United States)
Central Michigan Univ., Mount Pleasant, MI (United States)
Michigan State Univ., East Lansing, MI (United States); Mississippi State Univ., Starkville, MS (United States)
Michigan State Univ., East Lansing, MI (United States); Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Oregon State Univ., Corvallis, OR (United States)
Florida State Univ., Tallahassee, FL (United States)

We measured the ⁵⁷Zn β-delayed proton (βp) and γemission at the National Superconducting Cyclotron Laboratory. We find a ⁵⁷Zn half-life of 43.6 ± 0.2ms, βp branching ratio of (84.7 ±1.4)%, and identify four transitions corresponding to the exotic β-γ-pdecay mode, the second such identification in the fp-shell. The p/γratio was used to correct for isospin mixing while determining the ⁵⁷Zn mass via the isobaric multiplet mass equation. Previously, it was uncertain as to whether the rp-process flow could bypass the textbook waiting point ⁵⁶Ni for astrophysical conditions relevant to Type-I X-ray bursts. Our results definitively establish the existence of the ⁵⁶Ni bypass, with 14-17% of the rp-process flow taking this route.

View Accepted Manuscript (DOE)

Research Organization:: Argonne National Laboratory (ANL), Argonne, IL (United States); Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States); Michigan State Univ., East Lansing, MI (United States); Ohio Univ., Athens, OH (United States)

Sponsoring Organization:: National Science Foundation; USDOE National Nuclear Security Administration (NNSA); USDOE Office of Science (SC), Nuclear Physics (NP)

Grant/Contract Number:: AC02-06CH11357; AC52-07NA27344; FG02-88ER40387; NA0003906; NA0003909; SC0019042; SC0020451

OSTI ID:: 1864489

Alternate ID(s):: OSTI ID: 1864684
OSTI ID: 1888121
OSTI ID: 1903748

Report Number(s):: LLNL-JRNL-839052

Journal Information:: Physics Letters. B, Journal Name: Physics Letters. B Vol. 829; ISSN 0370-2693

Publisher:: ElsevierCopyright Statement

Country of Publication:: United States

Language:: English

References (43)

SHELL MODEL BASED REACTION RATES FOR rp-PROCESS NUCLEI IN THE MASS RANGE A=44–63 Fisker, J. L.; Barnard, V.; GÖRres, J. Atomic Data and Nuclear Data Tables, Vol. 79, Issue 2 https://doi.org/10.1006/adnd.2001.0867	journal	November 2001
Nuclear Data Sheets for A = 57 Bhat, M. R. Nuclear Data Sheets, Vol. 85, Issue 3 https://doi.org/10.1006/ndsh.1998.0021	journal	November 1998
Extension of the beta-delayed proton precursor series to 57Zn Vieira, D. J.; Sherman, D. F.; Zisman, M. S. Physics Letters B, Vol. 60, Issue 3 https://doi.org/10.1016/0370-2693(76)90295-1	journal	January 1976
Commissioning the A1900 projectile fragment separator 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 https://doi.org/10.1016/S0168-583X(02)01895-5	journal	May 2003
Beta counting system for fast fragmentation beams Prisciandaro, J. I.; Morton, A. C.; Mantica, P. F. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 505, Issue 1-2 https://doi.org/10.1016/S0168-9002(03)01037-4	journal	June 2003
rp-process nucleosynthesis at extreme temperature and density conditions Schatz, H.; Aprahamian, A.; Görres, J. Physics Reports, Vol. 294, Issue 4 https://doi.org/10.1016/S0370-1573(97)00048-3	journal	February 1998
Beta decay of 56Cu Borcea, R. Nuclear Physics A, Vol. 695, Issue 1-4 https://doi.org/10.1016/S0375-9474(01)01096-X	journal	December 2001
The Shell-Model Code NuShellX@MSU Brown, B. A.; Rae, W. D. M. Nuclear Data Sheets, Vol. 120 https://doi.org/10.1016/j.nds.2014.07.022	journal	June 2014
Radio Frequency Fragment Separator at NSCL Bazin, D.; Andreev, V.; Becerril, A. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 606, Issue 3 https://doi.org/10.1016/j.nima.2009.05.100	journal	July 2009
β -particle energy-summing correction for β -delayed proton emission measurements Meisel, Z.; del Santo, M.; Crawford, H. L. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 844 https://doi.org/10.1016/j.nima.2016.11.019	journal	February 2017
LISE++: Radioactive beam production with in-flight separators Tarasov, O. B.; Bazin, D. Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, Vol. 266, Issue 19-20 https://doi.org/10.1016/j.nimb.2008.05.110	journal	October 2008
Evaluated experimental isobaric analogue states from T=1/2 to T=3 and associated IMME coefficients MacCormick, M.; Audi, G. Nuclear Physics A, Vol. 925 https://doi.org/10.1016/j.nuclphysa.2014.01.007	journal	May 2014
Revalidation of the isobaric multiplet mass equation at A = 53, T = 3/2 Su, J.; Liu, W. P.; Zhang, N. T. Physics Letters B, Vol. 756 https://doi.org/10.1016/j.physletb.2016.03.024	journal	May 2016
Nucleosynthesis in type I X-ray bursts Parikh, A.; José, J.; Sala, G. Progress in Particle and Nuclear Physics, Vol. 69 https://doi.org/10.1016/j.ppnp.2012.11.002	journal	March 2013
Reaction rates and reaction sequences in the rp-process van Wormer, L.; Goerres, J.; Iliadis, C. The Astrophysical Journal, Vol. 432 https://doi.org/10.1086/174572	journal	September 1994
Explosive hydrogen burning Wallace, R. K.; Woosley, S. E. The Astrophysical Journal Supplement Series, Vol. 45 https://doi.org/10.1086/190717	journal	January 1981
Models for Type I X‐Ray Bursts with Improved Nuclear Physics Woosley, S. E.; Heger, A.; Cumming, A. The Astrophysical Journal Supplement Series, Vol. 151, Issue 1 https://doi.org/10.1086/381533	journal	March 2004
The Effects of Variations in Nuclear Processes on Type I X‐Ray Burst Nucleosynthesis Parikh, Anuj; José, Jordi; Moreno, Fermín The Astrophysical Journal Supplement Series, Vol. 178, Issue 1 https://doi.org/10.1086/589879	journal	September 2008
The jina Reaclib Database: its Recent Updates and Impact on Type-I X-Ray Bursts Cyburt, Richard H.; Amthor, A. Matthew; Ferguson, Ryan The Astrophysical Journal Supplement Series, Vol. 189, Issue 1 https://doi.org/10.1088/0067-0049/189/1/240	journal	June 2010
Nuclear physics of the outer layers of accreting neutron stars Meisel, Zach; Deibel, Alex; Keek, Laurens Journal of Physics G: Nuclear and Particle Physics, Vol. 45, Issue 9 https://doi.org/10.1088/1361-6471/aad171	journal	July 2018
The AME2016 atomic mass evaluation (II). Tables, graphs and references Wang, Meng; Audi, G.; Kondev, F. G. Chinese Physics C, Vol. 41, Issue 3 https://doi.org/10.1088/1674-1137/41/3/030003	journal	March 2017
The AME 2020 atomic mass evaluation (I). Evaluation of input data, and adjustment procedures* Huang, W. J.; Wang, Meng; Kondev, F. G. Chinese Physics C, Vol. 45, Issue 3 https://doi.org/10.1088/1674-1137/abddb0	journal	March 2021
Urca nuclide production in Type-I X-ray bursts and implications for nuclear physics studies Merz, Grant; Meisel, Zach Monthly Notices of the Royal Astronomical Society, Vol. 500, Issue 3 https://doi.org/10.1093/mnras/staa3414	journal	November 2020
First identification of Zn 58 β -delayed proton emission Ciemny, A. A.; Dominik, W.; Ginter, T. Physical Review C, Vol. 101, Issue 3 https://doi.org/10.1103/PhysRevC.101.034305	journal	March 2020
Mass relations of mirror nuclei Zong, Y. Y.; Ma, C.; Zhao, Y. M. Physical Review C, Vol. 102, Issue 2 https://doi.org/10.1103/PhysRevC.102.024302	journal	August 2020
Mass relations of mirror nuclei with local correlations Ma, C.; Zong, Y. Y.; Zhao, Y. M. Physical Review C, Vol. 102, Issue 2 https://doi.org/10.1103/PhysRevC.102.024330	journal	August 2020
Full pf shell model study of A =48 nuclei Caurier, E.; Zuker, A. P.; Poves, A. Physical Review C, Vol. 50, Issue 1 https://doi.org/10.1103/PhysRevC.50.225	journal	July 1994
Thermonuclear reaction rate of 56 Ni ( p , γ ) 57 Cu and 57 Cu ( p , γ ) 58 Zn Forstner, O.; Herndl, H.; Oberhummer, H. Physical Review C, Vol. 64, Issue 4 https://doi.org/10.1103/PhysRevC.64.045801	journal	August 2001
New effective interaction for p f -shell nuclei and its implications for the stability of the N = Z = 28 closed core Honma, M.; Otsuka, T.; Brown, B. A. Physical Review C, Vol. 69, Issue 3 https://doi.org/10.1103/PhysRevC.69.034335	journal	March 2004
Mass measurements in the vicinity of the doubly magic waiting point Ni 56 Kankainen, A.; Elomaa, V. -V.; Eronen, T. Physical Review C, Vol. 82, Issue 3 https://doi.org/10.1103/PhysRevC.82.034311	journal	September 2010
Theoretical analysis of isospin mixing with the β decay of Zn 56 Smirnova, N. A.; Blank, B.; Brown, B. A. Physical Review C, Vol. 93, Issue 4 https://doi.org/10.1103/PhysRevC.93.044305	journal	April 2016
β decay of the exotic T z = − 2 nuclei Fe 48 , Ni 52 , and Zn 56 Orrigo, S. E. A.; Rubio, B.; Fujita, Y. Physical Review C, Vol. 93, Issue 4 https://doi.org/10.1103/PhysRevC.93.044336	journal	April 2016
Isospin mixing from β -delayed proton emission Smirnova, N. A.; Blank, B.; Brown, B. A. Physical Review C, Vol. 95, Issue 5 https://doi.org/10.1103/PhysRevC.95.054301	journal	May 2017
Low-lying level structure of Cu 56 and its implications for the rp process Ong, W. -J.; Langer, C.; Montes, F. Physical Review C, Vol. 95, Issue 5 https://doi.org/10.1103/PhysRevC.95.055806	journal	May 2017
Unified approach to the classical statistical analysis of small signals Feldman, Gary J.; Cousins, Robert D. Physical Review D, Vol. 57, Issue 7 https://doi.org/10.1103/PhysRevD.57.3873	journal	April 1998
Observation of the β -Delayed γ -Proton Decay of Zn 56 and its Impact on the Gamow-Teller Strength Evaluation Orrigo, S. E. A.; Rubio, B.; Fujita, Y. Physical Review Letters, Vol. 112, Issue 22 https://doi.org/10.1103/PhysRevLett.112.222501	journal	June 2014
Determining the r p -Process Flow through Ni 56 : Resonances in Cu 57 ( p , γ ) Zn 58 Identified with GRETINA Langer, C.; Montes, F.; Aprahamian, A. Physical Review Letters, Vol. 113, Issue 3 https://doi.org/10.1103/PhysRevLett.113.032502	journal	July 2014
High-Precision Mass Measurement of Cu 56 and the Redirection of the r p -Process Flow Valverde, A. A.; Brodeur, M.; Bollen, G. Physical Review Letters, Vol. 120, Issue 3 https://doi.org/10.1103/PhysRevLett.120.032701	journal	January 2018
Production cross-sections of proton-rich 70Ge fragments and the decay of 57Zn and 61Ge Blank, B.; Borcea, C.; Canchel, G. The European Physical Journal A, Vol. 31, Issue 3 https://doi.org/10.1140/epja/i2006-10236-0	journal	March 2007
Shell-model description of neutron-rich pf-shell nuclei with a new effective interaction GXPF 1 Honma, M.; Otsuka, T.; Brown, B. A. The European Physical Journal A, Vol. 25, Issue S1 https://doi.org/10.1140/epjad/i2005-06-032-2	journal	April 2005
Dependence of X-Ray Burst Models on Nuclear Reaction Rates Cyburt, R. H.; Amthor, A. M.; Heger, A. The Astrophysical Journal, Vol. 830, Issue 2 https://doi.org/10.3847/0004-637X/830/2/55	journal	October 2016
Dependence of X-Ray Burst Models on Nuclear Masses Schatz, H.; Ong, W. -J. The Astrophysical Journal, Vol. 844, Issue 2 https://doi.org/10.3847/1538-4357/aa7de9	journal	August 2017
Influence of Nuclear Reaction Rate Uncertainties on Neutron Star Properties Extracted from X-Ray Burst Model–Observation Comparisons Meisel, Zach; Merz, Grant; Medvid, Sophia The Astrophysical Journal, Vol. 872, Issue 1 https://doi.org/10.3847/1538-4357/aafede	journal	February 2019

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⁵⁷Zn β-delayed proton emission establishes the ⁵⁶Ni rp-process waiting point bypass