Author/Authors :
K. Minamisono، نويسنده , , K. Matsuta، نويسنده , , T. Minamisono، نويسنده , , C.D.P. Levy، نويسنده , , T. Nagatomo، نويسنده , , M. Ogura، نويسنده , , T. Sumikama، نويسنده , , J.A. Behr، نويسنده , , K.P. Jackson، نويسنده , , H. Fujiwara، نويسنده , , M. Mihara، نويسنده , , M. Fukuda، نويسنده ,
Abstract :
The alignment correlation term in the β-ray angular distribution from nuclear-spin aligned 20Na(Iπ = 2+, T1/2 = 449.7 ms) has been measured for the first time. A large enhancement of the time component d in the main axial vector current was preliminarily obtained and the higher order matrices j2 and j3 were also evaluated. In order to extract very small G-parity violating induced tensor term, the alignment correlation term of the mirror partner 20F have to be measured.