Lepton asymmetry measurements in B̄→D*l-ν̄l and implications for V-A and the form factors

Publication Type

Journal Article

Publication Date

1-1993

Abstract

We present a measurement of the lepton decay asymmetry Afb in the reaction B¯→D*l−ν¯l using data collected with the CLEO II detector at the Cornell Electron Storage Ring (CESR). The value of Afb confirms that the chirality of the weak interaction is predominantly left-handed in b→c transitions as expected in the standard model, if it is assumed that the lepton current is also left-handed. Using Afb and the previously determined branching ratio, q2 distribution, and D* polarization, we obtain the first measurement of the form-factor ratios that are used to describe this semileptonic decay.

Discipline

Databases and Information Systems | Programming Languages and Compilers

Research Areas

Data Science and Engineering

Publication

Physical Review D, Particles and fields

Volume

47

Issue

3

First Page

791

Last Page

798

ISSN

0556-2821

Identifier

10.1103/PhysRevD.47.791

Publisher

American Physical Society

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