B{yields}V{gamma} beyond QCD factorization
Abstract
We calculate the main observables in B{sub u,d}{yields}({rho},{omega},K*){gamma} and B{sub s}{yields}(K*,{phi}){gamma} decays, i.e. branching ratios and CP and isospin asymmetries. We include QCD factorization results and also the dominant contributions beyond QCD factorization, namely, longdistance photon emission and softgluon emission from quark loops. All contributions beyond QCD factorization are estimated from lightcone sum rules. We devise, in particular, a method for calculating softgluon emission, building on earlier ideas developed for analogous contributions in nonleptonic decays. Our results are relevant for newphysics searches at the B factories, CERN LHC and a future superflavor factory. Using current experimental data, we also extract V{sub td}/V{sub ts} and the angle {gamma} of the unitarity triangle. We give detailed tables of theoretical uncertainties of the relevant quantities which facilitates future determinations of these CabibboKobayashiMaskawa parameters from updated experimental results.
 Authors:
 IPPP, Department of Physics, University of Durham, Durham DH1 3LE (United Kingdom)
 Publication Date:
 OSTI Identifier:
 21020051
 Resource Type:
 Journal Article
 Resource Relation:
 Journal Name: Physical Review. D, Particles Fields; Journal Volume: 75; Journal Issue: 5; Other Information: DOI: 10.1103/PhysRevD.75.054004; (c) 2007 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA)
 Country of Publication:
 United States
 Language:
 English
 Subject:
 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; ASYMMETRY; B MESONS; BRANCHING RATIO; CERN LHC; CP INVARIANCE; FACTORIZATION; GAMMA DECAY; GLUONS; ISOSPIN; K*892 MESONS; KOBAYASHIMASKAWA MATRIX; LIGHT CONE; OMEGA782 MESONS; PHOTON EMISSION; QUANTUM CHROMODYNAMICS; QUARKS; RHO770 MESONS; SUM RULES; UNITARITY; WEAK HADRONIC DECAY
Citation Formats
Ball, Patricia, Jones, Gareth W., and Zwicky, Roman. B{yields}V{gamma} beyond QCD factorization. United States: N. p., 2007.
Web. doi:10.1103/PHYSREVD.75.054004.
Ball, Patricia, Jones, Gareth W., & Zwicky, Roman. B{yields}V{gamma} beyond QCD factorization. United States. doi:10.1103/PHYSREVD.75.054004.
Ball, Patricia, Jones, Gareth W., and Zwicky, Roman. Thu .
"B{yields}V{gamma} beyond QCD factorization". United States.
doi:10.1103/PHYSREVD.75.054004.
@article{osti_21020051,
title = {B{yields}V{gamma} beyond QCD factorization},
author = {Ball, Patricia and Jones, Gareth W. and Zwicky, Roman},
abstractNote = {We calculate the main observables in B{sub u,d}{yields}({rho},{omega},K*){gamma} and B{sub s}{yields}(K*,{phi}){gamma} decays, i.e. branching ratios and CP and isospin asymmetries. We include QCD factorization results and also the dominant contributions beyond QCD factorization, namely, longdistance photon emission and softgluon emission from quark loops. All contributions beyond QCD factorization are estimated from lightcone sum rules. We devise, in particular, a method for calculating softgluon emission, building on earlier ideas developed for analogous contributions in nonleptonic decays. Our results are relevant for newphysics searches at the B factories, CERN LHC and a future superflavor factory. Using current experimental data, we also extract V{sub td}/V{sub ts} and the angle {gamma} of the unitarity triangle. We give detailed tables of theoretical uncertainties of the relevant quantities which facilitates future determinations of these CabibboKobayashiMaskawa parameters from updated experimental results.},
doi = {10.1103/PHYSREVD.75.054004},
journal = {Physical Review. D, Particles Fields},
number = 5,
volume = 75,
place = {United States},
year = {Thu Mar 01 00:00:00 EST 2007},
month = {Thu Mar 01 00:00:00 EST 2007}
}

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