Bound on V+A Admixture in the b→c Current from Inclusive vs Exclusive Semileptonic Decays of B Mesons
- 20 August 1997
- journal article
- research article
- Published by World Scientific Pub Co Pte Ltd in Modern Physics Letters A
- Vol. 12 (25) , 1823-1827
- https://doi.org/10.1142/s0217732397001850
Abstract
An admixture of a right-handed b→ c current in the semileptonic weak decays of the B mesons would give a significantly different contribution to the inclusive rate of the decays B→lν Xc as compared to the exclusive decay B→ D* lν at zero recoil. Thus a difference in the values of |Vcb| extracted from the data on these two types of decay would measure such admixture. The present marginal mismatch in determination of |Vcb| by the two methods can be interpreted as corresponding to gR/gL≈ 0.14±0.18.Keywords
All Related Versions
This publication has 7 references indexed in Scilit:
- Review of Particle PhysicsPhysical Review D, 1996
- Measurement of the weak charged current structure in semileptonic b-hadron decays at the Z peakPhysics Letters B, 1995
- Implications of a purely right-handed b-decay couplingPhysics Letters B, 1994
- Nature of the pressure-induced magnetic phase transition in the itinerant-electron antiferromagnet: A microscopic viewPhysical Review B, 1994
- The baffling semileptonic branching ratio of B mesonsPhysics Letters B, 1994
- QCD predictions for lepton spectra in inclusive heavy flavor decaysPhysical Review Letters, 1993
- Does thebquark decay left-handedly?Physical Review Letters, 1992