Heavy quark and chiral symmetry predictions for semileptonic decays B̄→D(D*)πν̄

Hai Yang Cheng*, Chi Yee Cheung, William Dimm, Guey-Lin Lin, Y. C. Lin, Tung Mow Yan, Hoi Lai Yu

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

18 Scopus citations


We study in detail the prediction for the semileptonic decays B̄→D(D*)πν̄ by heavy quark and chiral symmetry. The branching ratio for B̄→Dπν̄ is quite significant, as big as (0.5-1)%. The branching ratio for B̄→D*πν̄ is only of the order of 10-4-10-5. Numerical results for various single-particle spectra and their dependence on the pion momentum cutoff schemes are presented in a series of figures, as are the model-independent ratios for differential rates of D and D*. We also study the parity-violation effects on the decay rates for different polarization states of the D*.

Original languageEnglish
Pages (from-to)3204-3220
Number of pages17
JournalPhysical Review D
Issue number7
StatePublished - 1 Jan 1993

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