Proton elastic scattering from tin isotopes at 295 MeV and systematic change of neutron density distributions

S. Terashima, H. Sakaguchi, H. Takeda, T. Ishikawa, M. Itoh, T. Kawabata, T. Murakami, M. Uchida, Y. Yasuda, M. Yosoi, J. Zenihiro, H. P. Yoshida, T. Noro, T. Ishida, S. Asaji, and T. Yonemura

Phys. Rev. C 77, 024317 – Published 28 February 2008

Abstract

Cross sections and analyzing powers for proton elastic scattering from ${}^{116, 118, 120, 122, 124}{Sn}$ at 295 MeV have been measured for a momentum transfer of up to about 3.5 fm $^{- 1}$ to deduce systematic changes of the neutron density distribution. We tuned the relativistic Love-Franey interaction to explain the proton elastic scattering of a nucleus whose density distribution is well known. Then, we applied this interaction to deduce the neutron density distributions of tin isotopes. The result of our analysis shows the clear systematic behavior of a gradual increase in the neutron skin thickness of tin isotopes with mass number.

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Received 20 November 2007

DOI:https://doi.org/10.1103/PhysRevC.77.024317

Authors & Affiliations

S. Terashima^1,*, H. Sakaguchi^1,†, H. Takeda^1,*, T. Ishikawa^1,‡, M. Itoh^1,§, T. Kawabata^1,∥, T. Murakami¹, M. Uchida^1,¶, Y. Yasuda^1,**, M. Yosoi^1,2, J. Zenihiro¹, H. P. Yoshida^2,§, T. Noro³, T. Ishida^3,‡, S. Asaji³, and T. Yonemura³

¹Department of Physics, Kyoto University, Kyoto 606-8502, Japan.
²Research Center for Nuclear Physics (RCNP), Osaka University, Osaka 567-0047, Japan.
³Department of Physics, Kyushu University, Fukuoka 812-8581, Japan.

^*Present address: RIKEN Nishina Center, Wako, Saitama 351-0198, Japan.
^†Present address: Miyazaki University, Miyazaki, Miyazaki 889-2192, Japan.
^‡Present address: Laboratory of Nuclear Science, Tohoku University, Sendai, Miyagi 982-0216, Japan.
^§Present address: Cyclotron and Radioisotope Center, Tohoku University, Sendai, Miyagi 980-8578, Japan.
^∥Present address: Center for Nuclear Study, University of Tokyo, Wako, Saitama 351-0198, Japan.
^¶Present address: Tokyo Institute of Technology, Ookayama, Tokyo 152-8550, Japan.
^**Present address: University of Tsukuba, Tsukuba, Ibaraki 305-8571, Japan.

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Vol. 77, Iss. 2 — February 2008

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