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24 April 2024

» arxiv » 1106.3903

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Analyzing power in elastic scattering of 6He from polarized proton target at 71 MeV/nucleon
S. Sakaguchi ; Y. Iseri ; T. Uesaka ; M. Tanifuji ; K. Amos ; N. Aoi ; Y. Hashimoto ; E. Hiyama ; M. Ichikawa ; Y. Ichikawa ; S. Ishikawa ; K. Itoh ; M. Itoh ; H. Iwasaki ; S. Karataglidis ; T. Kawabata ; T. Kawahara ; H. Kuboki ; Y. Maeda ; R. Matsuo ; T. Nakao ; H. Okamura ; H. Sakai ; Y. Sasamoto ; M. Sasano ; Y. Satou ; K. Sekiguchi ; M. Shinohara ; K. Suda ; D. Suzuki ; Y. Takahashi ; A. Tamii ; T. Wakui ; K. Yako ; M. Yamaguchi ; Y. Yamamoto ;
Date:	14 Jun 2011
Abstract:	The vector analyzing power has been measured for the elastic scattering of neutron-rich 6He from polarized protons at 71 MeV/nucleon making use of a newly constructed solid polarized proton target operated in a low magnetic field and at high temperature. Two approaches based on local one-body potentials were applied to investigate the spin-orbit interaction between a proton and a 6He nucleus. An optical model analysis revealed that the spin-orbit potential for 6He is characterized by a shallow and long-ranged shape compared with the global systematics of stable nuclei. A semimicroscopic analysis with a alpha+n+n cluster folding model suggests that the interaction between a proton and the alpha core is essentially important in describing the p+6He elastic scattering. The data are also compared with fully microscopic analyses using non-local optical potentials based on nucleon-nucleon g-matrices.
Source:	arXiv, 1106.3903
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