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

研究成果: Article同行評審

18 引文 斯高帕斯(Scopus)

摘要

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*.

原文English
頁(從 - 到)3204-3220
頁數17
期刊Physical Review D
48
發行號7
DOIs
出版狀態Published - 1 一月 1993

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