TY - JOUR
T1 - Spin correlation parameter Cyy of p+He3 elastic backward scattering
AU - Shimizu, Y.
AU - Hatanaka, K.
AU - Tameshige, Y.
AU - Adachi, T.
AU - Fujita, K.
AU - Matsubara, H.
AU - Okamura, H.
AU - Tamii, A.
AU - Kobushkin, A. P.
AU - Kawabata, T.
AU - Sasamoto, Y.
AU - Suda, K.
AU - Uesaka, T.
AU - Itoh, K.
AU - Sakemi, Y.
AU - Wakui, T.
AU - Uchida, M.
AU - Kudoh, T.
AU - Sagara, K.
AU - Wakasa, T.
AU - Yoshida, H. P.
AU - Shimbara, Y.
AU - Strokovsky, E. A.
AU - Ishikawa, S.
AU - Tanifuji, M.
PY - 2007/10/8
Y1 - 2007/10/8
N2 - We measured the differential cross section and the spin correlation parameter Cyy of the p→+3He→ elastic backward scattering at 200, 300, and 400 MeV at θ=180° in the center-of-mass frame to study the mechanism of the reaction and to examine the validity of the He3 wave functions based on two different realistic two-body forces. This is the first measurement of the spin correlation parameter Cyy of the p→+3He→ 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 Cyy 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.
AB - We measured the differential cross section and the spin correlation parameter Cyy of the p→+3He→ elastic backward scattering at 200, 300, and 400 MeV at θ=180° in the center-of-mass frame to study the mechanism of the reaction and to examine the validity of the He3 wave functions based on two different realistic two-body forces. This is the first measurement of the spin correlation parameter Cyy of the p→+3He→ 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 Cyy 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.
UR - https://www.scopus.com/pages/publications/35148888573
UR - https://www.scopus.com/pages/publications/35148888573#tab=citedBy
U2 - 10.1103/PhysRevC.76.044003
DO - 10.1103/PhysRevC.76.044003
M3 - Article
AN - SCOPUS:35148888573
SN - 0556-2813
VL - 76
JO - Physical Review C - Nuclear Physics
JF - Physical Review C - Nuclear Physics
IS - 4
M1 - 044003
ER -