Weak isoscalar response of 11B

Authors :: Y. Shimbara
Masanobu Nakamura
K. Hara
Takatsugu Ishikawa
Masatoshi Itoh
M. Uchida
Hisataka Yoshida
Harutaka Sakaguchi
Kichiji Hatanaka
Hiroyuki Toyokawa
Hisanori Fujita
M. Yosoi
M. Fujiwara
Hiroyuki Takeda
Hidetoshi Akimune
K. Y. Hara
Y. Yasuda
Tomotsugu Wakasa
Takahiro Kawabata
H. Fujimura
Junichiro Kamiya
Atsushi Tamii
Tetsuo Noro
Y. Fujita
Source :: Physics of Atomic Nuclei. 67:1794-1798
Publication Year :: 2004
Publisher :: Pleiades Publishing Ltd, 2004.
Abstract: Weak-interaction responses of 11B were studied by measuring the 11B(3He, t) and 11B(p, p′) reactions. Obtained nuclear transition matrix elements B(GT), B(στ), and B(σ) were compared with the shell-model calculations. The shell-model calculations, which explained the isovector parts B(GT) and B(στ) reasonably well if the quenching factors of 0.5–0.7 were taken into account, did not describe the isoscalar part B(σ).