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Measurement of g9/2 strength in the stretched 8– state and other negative parity states via the 51V (d,p) 52V reaction

Journal Article · · Physical Review. C
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  1. Florida State University, Tallahassee, FL (United States)
  2. Ursinus College, Collegeville, PA (United States)
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We performed a measurement of the 51V (d,p) 52V reaction at 16 MeV using the Florida State University Super-Enge Split-Pole Spectrograph (SE-SPS) to search for single-neutron transfer strength for the g9/2 intruder orbit. Measurements of νg9/2 strength with (d, p) reactions in the N = 29 isotones 49Ca, 51Ti, 53Cr, and 55Fe have concluded that much of the expected νg9/2 strength is “missing”; that is, the summed strength is much smaller than the sum rule. In odd-odd N = 29 isotones, we expect a significant amount of νg9/2 strength to be located in the “stretched” 8– states with π $$f$$$^{n}_{7/2}$$νg9/2 structure that were systematically observed in the odd-odd N = 29 isotones via the (α,d) reaction. 52V is the only one of these odd-odd isotones in which a stable target is available for single-neutron transfer reactions. We report on a determination of νg9/2 strength for the stretched 8– state and ten other negative parity states populated via L = 4 transfer in the 51V(d, p)52V reaction. Furthermore, this is the first measurement of spectroscopic strength for L = 4 states in 52V via (d, p). In total, the L = 4 strength observed here sums to only 28.9(11)% of the sum rule for g9/2 neutron strength, a result that is consistent with the summed strengths observed in recent (d, p) measurements of the even-Z N = 29 isotones 51Ti, 53Cr, and 55Fe. The (α,3 He) reaction and the use of particle-γ coincidences would provide more sensitivity to search for the missing g9/2 strength.

Research Organization:
Texas A&M University Cyclotron Institute, College Station, TX (United States)
Sponsoring Organization:
USDOE; National Science Foundation (NSF)
Grant/Contract Number:
NA0003841
OSTI ID:
2480883
Journal Information:
Physical Review. C, Journal Name: Physical Review. C Journal Issue: 2 Vol. 109; ISSN 2469-9985
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English

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