TY - JOUR

T1 - Elastic proton scattering from 4He at 297 MeV

AU - Yoshimura, M.

AU - Nakamura, M.

AU - Akimune, H.

AU - Daito, I.

AU - Inomata, T.

AU - Itoh, M.

AU - Kawabata, M.

AU - Noro, Tetsuo

AU - Sakaguchi, H.

AU - Takeda, H.

AU - Tamii, A.

AU - Yonehara, K.

AU - Yoshida, H. P.

AU - Yosoi, M.

PY - 2001/1/1

Y1 - 2001/1/1

N2 - Differential cross sections, analyzing powers, and spin rotation parameters for elastic scattering of protons on 4He at 297 MeV have been measured over a wide angular range (12°≤θlab≤66°). Experimental data have been microscopically analyzed with relativistic impulse approximation calculations. The spin observables up to medium scattering angles (θc.m.≤40°) are predominantly sensitive to the ratio of the volume integral of scalar density to vector density. With a ratio of 0.92, which is significantly smaller than those for heavier nuclei (0.96-0.98), both spin observables as well as the differential cross section have been quantitatively reproduced. According to nuclear matter calculations, the small ratio reflects a high mass density. At backward angles, the experimental cross sections are larger than any of the values calculated with realistic density distributions.

AB - Differential cross sections, analyzing powers, and spin rotation parameters for elastic scattering of protons on 4He at 297 MeV have been measured over a wide angular range (12°≤θlab≤66°). Experimental data have been microscopically analyzed with relativistic impulse approximation calculations. The spin observables up to medium scattering angles (θc.m.≤40°) are predominantly sensitive to the ratio of the volume integral of scalar density to vector density. With a ratio of 0.92, which is significantly smaller than those for heavier nuclei (0.96-0.98), both spin observables as well as the differential cross section have been quantitatively reproduced. According to nuclear matter calculations, the small ratio reflects a high mass density. At backward angles, the experimental cross sections are larger than any of the values calculated with realistic density distributions.

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U2 - 10.1103/PhysRevC.63.034618

DO - 10.1103/PhysRevC.63.034618

M3 - Article

AN - SCOPUS:14344279843

VL - 63

SP - 346181

EP - 3461811

JO - Physical Review C - Nuclear Physics

JF - Physical Review C - Nuclear Physics

SN - 0556-2813

IS - 3

M1 - 034618

ER -