Nonleptonic B decays into two light mesons in soft-collinear effective theory

Preprint

30 January 2003

preprint
Published by arXiv in arXiv

Abstract

We consider nonleptonic B decays into two light mesons at leading order in soft-collinear effective theory. The four-quark operators relevant to B decays in the full theory are matched to the operators in the effective theory in a gauge invariant way. We include the analysis of nonfactorizable spectator contributions and spectator contributions to the heavy-to-light form factor at leading order. The decay amplitudes at leading order are shown to be factorized to all orders in alpha_s. As an application, we present the decay amplitudes for B -> pi pi in soft-collinear effective theory.

Keywords

NONLEPTONIC B DECAYS
COLLINEAR EFFECTIVE
EFFECTIVE THEORY
TWO LIGHT MESONS
DECAYS INTO TWO
SOFT COLLINEAR

All Related Versions

Version 1, 2003-01-30, ArXiv
Version 2, 2003-07-09, ArXiv
Version 1, 2003-01-09, ArXiv (Unconfirmed version)
Version 2, 2003-07-24, ArXiv (Unconfirmed version)
Published version: Nuclear Physics B, 680 (1-3), 302.

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