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

Simple item page
dc.creatorChay, Junegone
dc.creatorKim, Chul
dc.date2003-01-30
dc.date2003-07-09
dc.date.accessioned2026-07-07T10:48:42Z
dc.date.available2026-07-07T10:48:42Z
dc.descriptionWe consider nonleptonic B decays into two light mesons at leading order in soft-collinear effective theory, and show that the decay amplitudes are factorized to all orders in alpha_s. The operators for nonleptonic B decays in the full theory are first matched to the operators in SCET_I, which is the effective theory appropriate for sqrt{m_b Lambda} <mu <m_b with Lambda~0.5 GeV. We evolve the operators and the relevant time-ordered products in SCET_I to SCET_II, which is appropriate for mu < sqrt{m_b Lambda}. Using the gauge-invariant operators in SCET_II, we compute nonleptonic B decays in SCET, including the nonfactorizable spectator contributions and spectator contributions to the heavy-to-light form factor. As an application, we present the decay amplitudes for B ->pi,pi in soft-collinear effective theory.
dc.description42 pages, 5 figures, 2 tables Major revision of the manuscript. The idea of using SCET_I, and SCET_II is clearly presented. Some of the calculational steps are explicitly shown
dc.identifierhttps://arxiv.org/abs/hep-ph/0301262
dc.identifierhttp://arxiv.org/abs/hep-ph/0301262
dc.identifierNucl.Phys.B680:302-338,2004
dc.identifierdoi:10.1016/j.nuclphysb.2003.12.027
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/183971
dc.subjectHigh Energy Physics - Phenomenology
dc.titleNonleptonic B decays into two light mesons in soft-collinear effective theory
dc.typetext

Files

Collections

arXiv