High-resolution spectroscopy of 32P (I). The study

Unbound states of32Cl and the31S(p,γ)Matoš1, Blackmon2, Linhardt3 et al. 2011Phys. Rev. C

“…It should be noted that while we adopt a resonance strength for the 153 keV resonance that is nearly the same as [4,5], this arises from two significant changes that largely cancel each other. Our lower resonance energy results in a significantly smaller penetrability, but we recommend a significantly greater spectroscopic factor based on our reanalysis of the transfer data of [22,23]. Our reaction rate near peak nova temperatures, T ≈ 0.3 GK, becomes smaller than that of [5] due to our improved values for the proton branching ratios of the 546 and 622 keV resonances.…”

“…4) differs from the previous one only outside the area covered with our data points, giving a total proton-branching ratio >95%. The neutron spectroscopic factor for the mirror state in 32 P has been measured to be 0.03 [22] and 0.008 [23]. While there is a discrepancy between the measurements, even the lower value implies an expected proton width for the 2859 keV level that would be about 3 orders of magnitude larger than the expected gamma width.…”

“…The spectroscopic factor, C 2 S p , was obtained from the reaction studies with the mirror nucleus 32 P produced via a neutron transfer, 31 P(d,p) 32 P, at deuteron energies of 10 MeV [22] and 20 MeV [23]. The spectroscopic factors reported in these measurements are discrepant, 0.011 [22] and 0.0054 [23], and the average value was adopted in [4,5].…”

“…The spectroscopic factors reported in these measurements are discrepant, 0.011 [22] and 0.0054 [23], and the average value was adopted in [4,5]. However, we conducted a reanalysis of the experimental cross section data from [22] and [23] using the FRESCO code [25].…”

γ spectroscopy of states in Cl32 relevant for the S31Afanasieva1, Blackmon2, Deibel3 et al. 2017Phys. Rev. C0000View full textAdd to dashboardCite

“…The proton partial width for the 156-keV resonance was determined based upon mirror properties, as was done in Ref. [8] using neutron spectroscopic factors from measurements of the (d,p) reaction [21,22]. However, the resonance strength for the 156-keV resonance is now about 50% higher than that recommended in [8] due to the higher resonance energy found in this work.…”