EXCLUSIVE SEMILEPTONIC DECAYS OF B-MESONS INTO LIGHT MESONS

Authors
AKHOURY R STERMAN G YAO YP
Citation
R. Akhoury et al., EXCLUSIVE SEMILEPTONIC DECAYS OF B-MESONS INTO LIGHT MESONS, Physical review. D. Particles and fields, 50(1), 1994, pp. 358-372
Citations number
70
Categorie Soggetti
Physics, Particles & Fields
Journal title
Physical review. D. Particles and fields → ACNP
ISSN journal
05562821
Volume
50
Issue
1
Year of publication
1994
Pages
358 - 372
Database
ISI
SICI code
0556-2821(1994)50:1<358:ESDOBI>2.0.ZU;2-0
Abstract
Using heavy quark effective field theory, exponentiation of Sudakov do uble logarithms, and perturbative factorization theorems for exclusive processes, we calculate the amplitude for the semileptonic decay of m esons with a single, very heavy quark into pi and rho for a large hadr onic recoil momentum. A formula for these large-recoil widths is obtai ned in terms of two-particle wave functions of the heavy and light mes ons and applied to semileptonic decays of the B.