TESTING THE CHIRALITY OF B TO C COUPLING IN B-]D-ASTERISK-L-NU

被引：17

作者：

GRONAU, M ^{[1
]}

WAKAIZUMI, S ^{[1
]}

机构：

[1] UNIV TOKUSHIMA,SCH MED PHYS,DEPT PHYS,TOKUSHIMA 770,JAPAN

来源：

PHYSICS LETTERS B | 1992年 / 280卷 / 1-2期

关键词：

D O I：

10.1016/0370-2693(92)90776-Z

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Two asymmetries in the angular distribution of the lepton l and the D meson in B --> D*(--> D-pi)lv are calculated in the standard model. Using four form factor models we find values in the ranges A(FB) = (19-24)%, A(A) = ( 14-18)%. The sign of the two asymmetries was suggested to test the chirality of the b to c coupling. We study the asymmetries in a generic SU(2)L X SU(2)R X U(1) model. We show that, whereas in certain cases the asymmetries can discriminate against a large right-handed component, they cannot always distinguish between left- and right-hand couplings.

引用

页码：79 / 84

页数：6

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