Polarization transfer measurements for C12(p→,n→)N12(g.s.,1+) at 296 MeV and nuclear correlation effects

M. Dozono, T. Wakasa, E. Ihara, S. Asaji, K. Fujita, K. Hatanaka, M. Ichimura, T. Ishida, T. Kaneda, H. Matsubara, Y. Nagasue, T. Noro, Y. Sakemi, Y. Shimizu, H. Takeda, Y. Tameshige, A. Tamii, Y. Yamada

研究成果: Contribution to journalArticle査読

5 被引用数 (Scopus)

抄録

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.

本文言語英語
論文番号024319
ジャーナルPhysical Review C - Nuclear Physics
80
2
DOI
出版ステータス出版済み - 8 31 2009

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics

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