Investigating neutron-proton pairing in sd -shell nuclei via (p, He 3) and (He 3,p) transfer reactions

Y. Ayyad, J. Lee, A. Tamii, J. A. Lay, A. O. Macchiavelli, N. Aoi, B. A. Brown, H. Fujita, Y. Fujita, E. Ganioglu, K. Hatanaka, T. Hashimoto, T. Ito, T. Kawabata, Z. Li, H. Liu, H. Matsubara, K. Miki, H. J. Ong, G. PotelI. Sugai, G. Susoy, A. Vitturi, H. D. Watanabe, N. Yokota, J. Zenihiro

研究成果: ジャーナルへの寄稿学術論文査読

6 被引用数 (Scopus)


Neutron-proton pairing correlations are investigated in detail via np transfer reactions in N=Zsd-shell nuclei. In particular, we study the cross-section ratio of the lowest 0+ and 1+ states as an observable to quantify the interplay between T=0 (isoscalar) and T=1 (isovector) pairing strengths. The experimental results are compared to second-order distorted-wave Born approximation calculations with proton-neutron amplitudes obtained in the shell-model formalism using the universal sd-shell interaction B. Our results suggest underestimation of the nonneglible isoscalar pairing strength in the shell-model descriptions at the expense of the isovector channel.

ジャーナルPhysical Review C
出版ステータス出版済み - 23-08-2017

All Science Journal Classification (ASJC) codes

  • 核物理学および高エネルギー物理学


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