Semi-inclusive nonleptonic decays B\to D_s^{(*)} X

Abstract

We calculate the total and differential decay rates for the semi-inclusive nonleptonic decays $B\to D_s^{(\ast )}{X}_q$ ($q=c$ or $u$) under the factorization hypothesis. The initial bound state effect is treated using the light-cone expansion and the heavy quark effective theory. We investigate the contribution of the penguin amplitude for the decay mode $B\to D_s^{(\ast )}{X}_c$ and find that it is small but non-negligible. The resulting decay rates for $B\to D_s^{(\ast )}{X}_c$ agree with the measurements. The use of the decay mode $B\to D_s^{(\ast )}{X}_u$ to determine $|V_{ub}|$ is discussed.

16 pages, LaTex with 4 figures

References in corpus (6)

• QCD Factorization in B -> pi K, pi pi Decays and Extraction of Wolfenstein Parameters
• A proof of factorization for B -> D pi
• Factorization in Color-Favored B Meson Decays to Charm
• Measurement of Ds+ and Ds*+ Production in B Meson Decays and from Continuum e+e- Annihilation at sqrt{s}=10.6 GeV
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Cited by in corpus (1)

• |V_{cb}| and |V_{ub}| Determinations from Inclusive Semileptonic B Decays