β -delayed neutron emission from Ga85

Miernik, Krzysztof; Rykaczewski, Krzysztof P.; Grzywacz, Robert Kazimierz; Gross, C. J.; Madurga, M.; Miller, D.; Stracener, Dan W.; Batchelder, J. C.; Brewer, Nathan T.; Korgul, A.; Mazzocchi, C.; Mendez, A. J.; Liu, Yuans; Paulauskas, S. V.; Winger, J. A.; Wolińska-Cichocka, M.; Zganjar, E. F.

doi:10.1103/PhysRevC.97.054317

Title: $β$ -delayed neutron emission from ${}^{85}{Ga}$

Journal Article · 15 May 2018 · Physical Review C

DOI: https://doi.org/10.1103/PhysRevC.97.054317 · OSTI ID:1528700

Miernik, Krzysztof ^[1];

^[2];

^[3]; Gross, C. J. ^[2]; Madurga, M. ^[4]; Miller, D. ^[4];

^[2]; Batchelder, J. C. ^[5]; Brewer, Nathan T. ^[6]; Korgul, A. ^[1]; Mazzocchi, C. ^[1]; Mendez, A. J. ^[7];

^[2]; Paulauskas, S. V. ^[4]; Winger, J. A. ^[8]; Wolińska-Cichocka, M. ^[9]; Zganjar, E. F. ^[10]

Univ. of Warsaw (Poland)
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Univ. of Tennessee, Knoxville, TN (United States); Joint Institute for Nuclear Physics and Application, Oak Ridge, TN (United States)
Univ. of Tennessee, Knoxville, TN (United States)
Univ. of California, Berkeley, CA (United States)
Vanderbilt Univ., Nashville, TN (United States)
Campbell University, Buies Creek, NC (United States)
Mississippi State Univ., Mississippi State, MS (United States)
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Joint Institute for Nuclear Physics and Application, Oak Ridge, TN (United States); Univ. of Warsaw (Poland)
Louisiana State Univ., Baton Rouge, LA (United States)

Here, decay of ⁸⁵Ga was studied by means of β-neutron-γ spectroscopy. A pure beam of ⁸⁵Ga was produced at the Holifield Radioactive Ion Beam Facility using a resonance ionization laser ion source and a high-resolution electromagnetic separator. The β-delayed neutron emission probability was measured for the first time, yielding 70(5)%. An upper limit of 0.1% for β-delayed two-neutron emission was also experimentally established for the first time. A detailed decay scheme including absolute γ-ray intensities was obtained. Lastly, results are compared with theoretical β-delayed emission models.

View Accepted Manuscript (DOE)

View Accepted Manuscript (Publisher)

Cite

Export

Save

Research Organization:: Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)

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

Grant/Contract Number:: AC05-00OR22725; FG02-96ER40983; FG05-88ER40407; SC00144448; AC05-06OR23100; AC02-05CH11231; NA0002132; FG-05-88ER40407; SC00-144448

OSTI ID:: 1528700

Alternate ID(s):: OSTI ID: 1437210

Journal Information:: Physical Review C, Vol. 97, Issue 5; ISSN 2469-9985

Publisher:: American Physical Society (APS)Copyright Statement

Country of Publication:: United States

Language:: English

Citation Metrics:

Cited by: 6 works

Citation information provided by
Web of Science

References (23)

The essential decay of pandemonium: β-delayed neutrons Hardy, J. C.; Jonson, B.; Hansen, P. G. Nuclear Physics A, Vol. 305, Issue 1 https://doi.org/10.1016/0375-9474(78)90162-8	journal	July 1978
The NUBASE2016 evaluation of nuclear properties Audi, G.; Kondev, F. G.; Wang, Meng Chinese Physics C, Vol. 41, Issue 3 https://doi.org/10.1088/1674-1137/41/3/030001	journal	March 2017
Large β -Delayed One and Two Neutron Emission Rates in the Decay of Ga 86 Miernik, K.; Rykaczewski, K. P.; Gross, C. J. Physical Review Letters, Vol. 111, Issue 13 https://doi.org/10.1103/PhysRevLett.111.132502	journal	September 2013
Beta-delayed fission and neutron emission: Consequences for the astrophysicalr-process and the age of the galaxy Thielemann, F. -K.; Metzinger, J.; Klapdor, H. V. Zeitschrift f�r Physik A Atoms and Nuclei, Vol. 309, Issue 4 https://doi.org/10.1007/BF01413833	journal	December 1983
Isotopic r-process abundances and nuclear structure far from stability - Implications for the r-process mechanism Kratz, Karl-Ludwig; Bitouzet, Jean-Philippe; Thielemann, Friedrich-Karl The Astrophysical Journal, Vol. 403 https://doi.org/10.1086/172196	journal	January 1993
The impact of individual nuclear properties on r -process nucleosynthesis Mumpower, M. R.; Surman, R.; McLaughlin, G. C. Progress in Particle and Nuclear Physics, Vol. 86 https://doi.org/10.1016/j.ppnp.2015.09.001	journal	January 2016
ISOL science at the Holifield Radioactive Ion Beam Facility Beene, J. R.; Bardayan, D. W.; Galindo Uribarri, A. Journal of Physics G: Nuclear and Particle Physics, Vol. 38, Issue 2 https://doi.org/10.1088/0954-3899/38/2/024002	journal	January 2011
On-line commissioning of the HRIBF resonant ionization laser ion source Liu, Y.; Jost, C. U.; Mendez II, A. J. Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, Vol. 298 https://doi.org/10.1016/j.nimb.2012.12.041	journal	March 2013
New subshell closure at N = 58 emerging in neutron-rich nuclei beyond Ni 78 Winger, J. A.; Rykaczewski, K. P.; Gross, C. J. Physical Review C, Vol. 81, Issue 4 https://doi.org/10.1103/PhysRevC.81.044303	journal	April 2010
New half-life measurements of the most neutron-rich arsenic and germanium isotopes Mazzocchi, C.; Rykaczewski, K. P.; Korgul, A. Physical Review C, Vol. 87, Issue 3 https://doi.org/10.1103/PhysRevC.87.034315	journal	March 2013
Experimental study of the β - γ and β - n γ decay of the neutron-rich nucleus 85 Ga Korgul, A.; Rykaczewski, K. P.; Grzywacz, R. Physical Review C, Vol. 88, Issue 4 https://doi.org/10.1103/PhysRevC.88.044330	journal	October 2013
Neutron-rich isotopes around the r-process ?waiting-point? nuclei 29 79 Cu50 and 30 80 Zn50 Kratz, K. -L.; Gabelmann, H.; M�ller, P. Zeitschrift f�r Physik A Hadrons and Nuclei, Vol. 340, Issue 4 https://doi.org/10.1007/BF01290331	journal	December 1991
New Beta-delayed Neutron Measurements in the Light-mass Fission Group Agramunt, J.; García, A. R.; Algora, A. Nuclear Data Sheets, Vol. 120 https://doi.org/10.1016/j.nds.2014.07.010	journal	June 2014
Evidence for Gamow-Teller Decay of Ni 78 Core from Beta-Delayed Neutron Emission Studies Madurga, M.; Paulauskas, S. V.; Grzywacz, R. Physical Review Letters, Vol. 117, Issue 9 https://doi.org/10.1103/PhysRevLett.117.092502	journal	August 2016
Pygmy Gamow-Teller resonance in the N = 50 region: New evidence from staggering of β -delayed neutron-emission probabilities Verney, D.; Testov, D.; Ibrahim, F. Physical Review C, Vol. 95, Issue 5 https://doi.org/10.1103/PhysRevC.95.054320	journal	May 2017
New calculations of gross β -decay properties for astrophysical applications: Speeding-up the classical r process Möller, Peter; Pfeiffer, Bernd; Kratz, Karl-Ludwig Physical Review C, Vol. 67, Issue 5 https://doi.org/10.1103/PhysRevC.67.055802	journal	May 2003
Phenomenological model of β -delayed neutron-emission probability Miernik, K. Physical Review C, Vol. 88, Issue 4 https://doi.org/10.1103/PhysRevC.88.041301	journal	October 2013
Systematics of neutron emission probabilities from delayed neutron precursors Kratz, K. -L.; Herrmann, G. Zeitschrift f�r Physik, Vol. 263, Issue 5 https://doi.org/10.1007/BF01391992	journal	October 1973
Improving systematic predictions of β -delayed neutron emission probabilities McCutchan, E. A.; Sonzogni, A. A.; Johnson, T. D. Physical Review C, Vol. 86, Issue 4 https://doi.org/10.1103/PhysRevC.86.041305	journal	October 2012
β -delayed multiple-neutron emission in the effective density model Miernik, K. Physical Review C, Vol. 90, Issue 5 https://doi.org/10.1103/PhysRevC.90.054306	journal	November 2014
Unexpected high-energy γ emission from decaying exotic nuclei Gottardo, A.; Verney, D.; Deloncle, I. Physics Letters B, Vol. 772 https://doi.org/10.1016/j.physletb.2017.06.050	journal	September 2017
Gamma Decay of Unbound Neutron-Hole States in Sn 133 Vaquero, V.; Jungclaus, A.; Doornenbal, P. Physical Review Letters, Vol. 118, Issue 20 https://doi.org/10.1103/PhysRevLett.118.202502	journal	May 2017
Single-particle energies, wave functions, quadrupole moments and g-factors in an axially deformed woods-saxon potential with applications to the two-centre-type nuclear problems Cwiok, S.; Dudek, J.; Nazarewicz, W. Computer Physics Communications, Vol. 46, Issue 3 https://doi.org/10.1016/0010-4655(87)90093-2	journal	September 1987