g9/2 neutron strength in the N = 29 isotones and the 52Cr(d,p)⁢ 53Cr reaction

Riley, L. A.; Simms, D. T.; Baby, L. T.; Conley, A. L.; Cottle, P. D.; Esparza, J.; Hanselman, K.; Hay, I. C. S.; Heinze, M.; Kelly, B.; Kemper, K. W.; McCann, G. W.; Renom, R.; Spieker, M.; Wiedenhöver, I.

doi:10.1103/physrevc.108.044306

g_9/2 neutron strength in the N = 29 isotones and the ⁵²Cr(d,p)⁢ ⁵³Cr reaction

Journal Article · Tue Oct 10 00:00:00 EDT 2023 · Physical Review. C

DOI:https://doi.org/10.1103/physrevc.108.044306· OSTI ID:2480689

^[1]; ^[1]; Baby, L. T. ^[2]; ^[2]; ^[2]; ^[2]; Hanselman, K. ^[2]; ^[2]; Heinze, M. ^[1]; ^[2]; ^[2]; ^[2]; Renom, R. ^[2]; ^[2]; ^[2]

Ursinus College, Collegeville, PA (United States)
Florida State University, Tallahassee, FL (United States)

We performed a measurement of the ⁵²Cr(d,p)⁢⁢ ⁵³Cr reaction at 16 MeV using the Florida State University Super-Enge Split-Pole Spectrograph (SE-SPS) and observed 26 states. While all of the states observed here had been seen in previous (d,p) experiments, we changed five L assignments from those reported previously and determined L values for nine states that had not had such assignments made previously. The g_9/2 neutron strength observed in ⁵³Cr in the present work and in the N = 29 isotones ⁴⁹Ca, ⁵¹Ti, and ⁵⁵Fe via (d,p) reactions is much smaller than the sum rule for this strength. Most of the observed L = 4 strength in these nuclei is located in states near 4 MeV excitation energy. The remaining g_9/2 strength may be located in the continuum or may be fragmented among many bound states. A covariant density-functional theory calculation provides support for the hypothesis that the g_9/2 neutron orbit is unbound in ⁵³Cr. The (α, ³He) reaction may provide a more sensitive probe for the missing g_9/2 neutron strength. Additionally, particle-γ coincidence experiments may help resolve some remaining questions in this nucleus.

View Accepted Manuscript (DOE)

Research Organization:: Florida State University, Tallahassee, FL (United States); Ursinus College, Collegeville, PA (United States)

Sponsoring Organization:: National Science Foundation (NSF); USDOE National Nuclear Security Administration (NNSA)

Grant/Contract Number:: NA0003841

OSTI ID:: 2480689

Journal Information:: Physical Review. C, Journal Name: Physical Review. C Journal Issue: 4 Vol. 108; ISSN 2469-9985

Publisher:: American Physical Society (APS)Copyright Statement

Country of Publication:: United States

Language:: English

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