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(Seminar) QCD Aspects of Radiative Leptonic B Decays
2019-04-17  【 】【打印】【关闭

CAS Key Laboratory of Theoretical Physics

Institute of Theoretical Physics

Chinese Academy of Sciences

Seminar

Title

题目

QCD Aspects of Radiative Leptonic B Decays

Speaker

报告人

Yuming Wang

Affiliation

所在单位

Nankai Univerisity

Date

日期

2:30pm, Apr 17, 2019, Wednesday
 

Venue

地点

Room 6420, ITP NEW BUILDING

Abstract

摘要

I will discuss the theory status of computing the subleading power corrections to radiative leptonic B decays in QCD, focusing on factorization properties of the corresponding SCET matrix elements in the heavy quark expansion as well as the infrared subtraction scheme in the presence of the evanescent operators. Determinations of the inverse moment for the leading-twist B-meson LCDA from the integrated branching fractions of B to \gamma l nu, with a photon energy cut E_{\gamma} > E_{cut}, will be also discussed, including perspectives on the future measurements at the Bell II experiment.

Contact Person

所内联系人

Gang Yang
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