Spin correlation parameter Cyy of p+3He elastic backward scattering

被引：10

作者：

Shimizu, Y. ^{[1
,3
]}

Hatanaka, K. ^{[1
]}

Tameshige, Y. ^{[1
]}

Adachi, T. ^{[1
]}

Fujita, K. ^{[1
]}

Matsubara, H. ^{[1
]}

Okamura, H. ^{[1
]}

Tamii, A. ^{[1
]}

Kobushkin, A. P. ^{[2
]}

Kawabata, T. ^{[3
]}

Sasamoto, Y. ^{[3
]}

Suda, K. ^{[1
,3
]}

Uesaka, T. ^{[3
]}

Itoh, K. ^{[4
]}

Sakemi, Y. ^{[5
]}

Wakui, T. ^{[5
]}

Uchida, M. ^{[6
]}

Kudoh, T. ^{[7
]}

Sagara, K. ^{[7
]}

Wakasa, T. ^{[7
]}

Yoshida, H. P. ^{[8
]}

Shimbara, Y. ^{[9
]}

Strokovsky, E. A. ^{[10
]}

Ishikawa, S. ^{[11
]}

Tanifuji, M. ^{[11
]}

机构：

[1] Osaka Univ, RCNP, Osaka 5670047, Japan

[2] NN Bogolyubov Inst Theoret Phys, UA-252143 Kiev, Ukraine

[3] Univ Tokyo, CNS, Wako, Saitama 3510198, Japan

[4] Saitama Univ, Dept Phys, Urawa, Saitama 3388570, Japan

[5] Tohoku Univ, CYRIC, Sendai, Miyagi 9808578, Japan

[6] Tokyo Inst Technol, Dept Phys, Tokyo 1528550, Japan

[7] Kyushu Univ, Dept Phys, Fukuoka 8128581, Japan

[8] Kyushu Univ, Res & Dev Ctr Higher Educ, Fukuoka 8108560, Japan

[9] Michigan State Univ, NSCL, E Lansing, MI 48824 USA

[10] Joint Inst Nucl Res, RU-141980 Dubna, Russia

[11] Hosei Univ, Ctr Sci Res, Dept Phys, Tokyo 1028160, Japan

来源：

PHYSICAL REVIEW C | 2007年 / 76卷 / 04期

关键词：

D O I：

10.1103/PhysRevC.76.044003

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

We measured the differential cross section and the spin correlation parameter C-yy of the p+He-3 elastic backward scattering at 200, 300, and 400 MeV at theta=180(degrees) in the center-of-mass frame to study the mechanism of the reaction and to examine the validity of the He-3 wave functions based on two different realistic two-body forces. This is the first measurement of the spin correlation parameter C-yy of the p+He-3 EBS at intermediate energies. The experimental results were compared with few-body calculations, including three reaction mechanisms: two-nucleon-pair exchange, pion exchange, and direct pp scattering. It was found that few-body calculations describe the differential cross-section data reasonably well. The spin correlation parameter C-yy shows clear evidence for the two-nucleon-pair exchange processes in the reaction, demonstrating that the spin observables are helpful for deeper understanding of the reaction mechanism.

引用

页数：7

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