TY - JOUR
T1 - Polarization transfer measurements for C12(p→,n→)N12(g.s.,1+) at 296 MeV and nuclear correlation effects
AU - Dozono, M.
AU - Wakasa, T.
AU - Ihara, E.
AU - Asaji, S.
AU - Fujita, K.
AU - Hatanaka, K.
AU - Ichimura, M.
AU - Ishida, T.
AU - Kaneda, T.
AU - Matsubara, H.
AU - Nagasue, Y.
AU - Noro, T.
AU - Sakemi, Y.
AU - Shimizu, Y.
AU - Takeda, H.
AU - Tameshige, Y.
AU - Tamii, A.
AU - Yamada, Y.
PY - 2009/8/31
Y1 - 2009/8/31
N2 - Differential cross sections and complete sets of polarization observables are presented for the Gamow-Teller C12(p→,n→)N12(g.s.,1+) reaction at a bombarding energy of 296 MeV with momentum transfers q of 0.1 to 2.2 fm-1. The polarization transfer observables are used to deduce the spin-longitudinal cross section, IDq, and spin-transverse cross sections, IDp and IDn. The data are compared with calculations based on the distorted-wave impulse approximation (DWIA) using shell-model wave functions. Significant differences between the experimental and theoretical results are observed for all three spin-dependent IDi at momentum transfers of q O. 5 -1, suggesting the existence of nuclear correlations beyond the shell model. We also performed DWIA calculations employing random-phase approximation (RPA) response functions and found that the observed discrepancy is partly resolved by the pionic and -mesonic correlation effects.
AB - Differential cross sections and complete sets of polarization observables are presented for the Gamow-Teller C12(p→,n→)N12(g.s.,1+) reaction at a bombarding energy of 296 MeV with momentum transfers q of 0.1 to 2.2 fm-1. The polarization transfer observables are used to deduce the spin-longitudinal cross section, IDq, and spin-transverse cross sections, IDp and IDn. The data are compared with calculations based on the distorted-wave impulse approximation (DWIA) using shell-model wave functions. Significant differences between the experimental and theoretical results are observed for all three spin-dependent IDi at momentum transfers of q O. 5 -1, suggesting the existence of nuclear correlations beyond the shell model. We also performed DWIA calculations employing random-phase approximation (RPA) response functions and found that the observed discrepancy is partly resolved by the pionic and -mesonic correlation effects.
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U2 - 10.1103/PhysRevC.80.024319
DO - 10.1103/PhysRevC.80.024319
M3 - Article
AN - SCOPUS:70249107108
SN - 0556-2813
VL - 80
JO - Physical Review C - Nuclear Physics
JF - Physical Review C - Nuclear Physics
IS - 2
M1 - 024319
ER -