Analyzing Power-Polarization Inequality in the Inelastic Scattering of Protons on 12C for Incident Energies from 22.0 to 29.0 MeV

• Published in: Journal of the Physical Society of Japan Vol. 50; no. 10; p. 3198
• Main Authors: Fujisawa, Takashi, Kishida, Norio, Kubo, Toshiyuki, Wada, Takeshi, Toba, Yoshiyuki, Hasegawa, Takeo, Sekiguchi, Masayuki, Ueda, Nozomu, Yasue, Masaharu, Soga, Fuminori, Kamitsubo, Hiromichi, Nakamura, Masanobu, Hatanaka, Kichiji, Wakuta, Yoshihisa, Tanaka, Teruaki, Nagao, Akihiro
• Format: Journal Article
• Language: English
• Published: Tokyo The Physical Society of Japan 01-10-1981
• ISSN: 0031-9015; 1347-4073

The difference between the analyzing power (A) and polarization (P) in the inelastic scattering of protons on 12C (4.44 MeV 2+ state) are determined by measuring the spin flip probability of polarized protons at intervals of incident energy of about 0.5 MeV at lab. scattering angles of 45°, 60°, 75°, 105°, 120°, 135° and 150°. The spin flip asymmetry (SFA), spin flip probability (SF) and A are also measured. The angular distributions of SF, SFA, A, (A-P) and partial differential cross sections are investigated at 24.1, 26.2 and 28.7 MeV at intervals of lab. angle of 7.5° or 15°. The (A-P) and SFA show pronounced interferencelike energy dependence and the (A-P) has large values of more than 50% at 135° and 150° for 26.2 MeV. The measurement was done by using the (p, p'γ) coindidence technique developed by Schmidt.