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arxiv 1007.3775 v1 pith:EGT6FXM6 submitted 2010-07-22 nucl-ex nucl-th

Analyzing power for the proton elastic scattering from neutron-rich 6He nucleus

T. Uesaka , S. Sakaguchi , Y. Iseri , K. Amos , N. Aoi , Y. Hashimoto , E. Hiyama , M. Ichikawa
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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 M. Tanifuji A. Tamii T. Wakui K. Yako Y. Yamamoto M. Yamaguchi
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classification nucl-ex nucl-th
keywords analyzingpowerelasticfoldingmodelnuclearprotonscattering
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Vector analyzing power for the proton-6He elastic scattering at 71 MeV/nucleon has been measured for the first time, with a newly developed polarized proton solid target working at low magnetic field of 0.09 T. The results are found to be incompatible with a t-matrix folding model prediction. Comparisons of the data with g-matrix folding analyses clearly show that the vector analyzing power is sensitive to the nuclear structure model used in the reaction analysis. The alpha-core distribution in 6He is suggested to be a possible key to understand the nuclear structure sensitivity.

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