A systematic study of the (p, d) strength for transitions to deeply bound hole states

Possible determination of high-lying single-particle components with (p,d) reactions

“…In Summary, (p, d) reactions with 12 C, 24 Mg, 28 Si, and 40 Ca at an incident energy of 51.93 MeV leaving the residual nuclei in their ground and j-forbidden excited states are analyzed with CRC calculations. SAs for neutrons in normal and HLSPCs in the ground and excited states of these even-even light nuclei are obtained by simultaneously fitting the ground state and the excited state data.…”

“…In order to study the feasibility of extracting the SAs of HLSPCs in the ground and low excited state of nuclei, we reanalyze the (p, d) reactions measured by Ohnuma et al [25] at 51.93 MeV with 12 C, 24 Mg, 28 Si and 40 Ca leading to the j-forbidden states at 4.32 MeV ( 5 2 − ) in 11 C, 2.05 MeV ( 7 2 + ) in 23 Mg, 2.16 MeV ( 7 2 + ) in 27 Si, and 3.64 MeV ( 9 2 − ) in 39 Ca. One step transfer to the ground states (g.s.)…”

“…These are called "j-forbidden" tran-sitions [16,17,[19][20][21]. In most of the previous analyses of such reactions, neutron transfers through collective excitations in either the entrance or the exit channels (two-step transfer processes, TST) are thought to be the most important mechanism [16,[18][19][20][21][22][23][24][25]. Very few attempts have been made to include OST processes in the analysis of the j-forbidden transition data.…”

“…Effects of OST, TST and inelastic excitation processes in neutron pickup reactions. Figures are (a), (b), (c), (d) for the ground state data and (e), (f), (g), (h) for the excited state data of 12 C,24 Mg,28 Si, and 40 Ca, respectively. The solid, dashed, dash-dotted, and dotted curves are for results with all processes, without direct OST, without TST via the excited states of the target, and without inelastic excitations in the exit channels, respectively.…”

Neutron pickup reactions on the even palladium isotopes and the deeply bound hole-state excitation

“…Recently Ishimatsu et al 23) have attempted to account for the full strength in a systematic study of the (p, d) reaction by not subtracting a background but on the other hand choosing a fixed energy interval and identifying the strength in it with that of the next lower shells. We have shown in our previous work on the Sn(d, t) reaction that it is indeed conceivable that the missing strength resides in the backgro~d, but in contrast to the result of Ish~atsu et af.…”