Factorization, resummation and sum rules for heavy-to-light form factors

  • Yu-Ming Wang (Corresponding author)

Publications: Contribution to bookContribution to proceedingsPeer Reviewed

Abstract

Precision calculations of heavy-to-light form factors are essential to sharpen our understanding towards the strong interaction dynamics of the heavy-quark system and to shed light on a coherent solution of flavor anomalies. We briefly review factorization properties of heavy-to-light form factors in the framework of QCD factorization in the heavy quark limit and discuss the recent progress on the QCD calculation of B → π form factors from the light-cone sum rules with the B-meson distribution amplitudes. Demonstration of QCD factorization for the vacuum-to-B-meson correlation function used in the sum-rule construction and resummation of large logarithms in the short-distance functions entering the factorization theorem are presented in detail. Phenomenological implications of the newly derived sum rules for B → π form factors are further addressed with a particular attention to the extraction of the CKM matrix element |V ub|.

Original languageEnglish
Title of host publicationQCD@Work 2016 - International Workshop on Quantum Chromodynamics - Theory and Experiment
EditorsFulvia De Fazio, Pietro Colangelo, Claudio Coriano, Giuseppe Eugenio Bruno, Gabriele Chiodini, Eugenio Nappi, Stefania Spagnolo, Donato M. Creanza
PublisherE D P Sciences
Number of pages6
ISBN (Electronic)9782759890101
ISBN (Print)978-2-7598-9010-1
DOIs
Publication statusPublished - 2016
Event8th International Workshop on Quantum Chromodynamics: Theory and Experiment (QCD at Work) - Martina Franca, Italy
Duration: 27 Jun 201630 Jun 2016

Publication series

SeriesEPJ Web of Conferences
Volume129
ISSN2100-014X

Seminar/Workshop

Seminar/Workshop8th International Workshop on Quantum Chromodynamics
Abbreviated titleQCD@Work 2016
Country/TerritoryItaly
CityMartina Franca
Period27/06/1630/06/16

Austrian Fields of Science 2012

  • 103024 Quantum field theory
  • 103034 Particle physics

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