Flavor-singlet B-decay amplitudes in QCD factorization

Martin Beneke; Matthias Neubert

doi:10.1016/S0550-3213(02)01091-X

Flavor-singlet B-decay amplitudes in QCD factorization

Martin Beneke
, Matthias Neubert

Research output: Contribution to journal › Article › peer-review

228 Scopus citations

Abstract

Exclusive hadronic B-meson decays into two-body final states consisting of a light pseudoscalar or vector meson along with an η or η′ meson are of great phenomenological interest. Their theoretical analysis involves decay mechanisms that are unique to flavor-singlet states, such as their coupling to gluons or their "intrinsic charm" content. These issues are studied systematically in the context of QCD factorization and the heavy-quark expansion. Theory can account for the experimental data on the B → K ^(*) η ^(′) branching fractions, albeit within large uncertainties.

Original language	English
Pages (from-to)	225-248
Number of pages	24
Journal	Nuclear Physics, Section B
Volume	651
Issue number	3
DOIs	https://doi.org/10.1016/S0550-3213(02)01091-X
State	Published - 24 Feb 2003
Externally published	Yes

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title = "Flavor-singlet B-decay amplitudes in QCD factorization",

abstract = " Exclusive hadronic B-meson decays into two-body final states consisting of a light pseudoscalar or vector meson along with an η or η′ meson are of great phenomenological interest. Their theoretical analysis involves decay mechanisms that are unique to flavor-singlet states, such as their coupling to gluons or their {"}intrinsic charm{"} content. These issues are studied systematically in the context of QCD factorization and the heavy-quark expansion. Theory can account for the experimental data on the B → K (*) η (′) branching fractions, albeit within large uncertainties.",

author = "Martin Beneke and Matthias Neubert",

note = "Funding Information: We are grateful to Thorsten Feldmann for important comments on the B→η (′) form factors and for careful reading of the manuscript, and to Peter Kroll and Kornelija Passek-Kumeri{\v c}ki for communicating details on their work on the two-gluon distribution amplitude prior to publication. The research of M.B. is supported in part by the Bundesministerium f{\"u}r Bildung und Forschung, Project 05 HT1PAB/2. The research of M.N. is supported by the National Science Foundation under Grant PHY-0098631.",

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doi = "10.1016/S0550-3213(02)01091-X",

language = "English",

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T1 - Flavor-singlet B-decay amplitudes in QCD factorization

AU - Beneke, Martin

AU - Neubert, Matthias

N1 - Funding Information: We are grateful to Thorsten Feldmann for important comments on the B→η (′) form factors and for careful reading of the manuscript, and to Peter Kroll and Kornelija Passek-Kumerički for communicating details on their work on the two-gluon distribution amplitude prior to publication. The research of M.B. is supported in part by the Bundesministerium für Bildung und Forschung, Project 05 HT1PAB/2. The research of M.N. is supported by the National Science Foundation under Grant PHY-0098631.

PY - 2003/2/24

Y1 - 2003/2/24

N2 - Exclusive hadronic B-meson decays into two-body final states consisting of a light pseudoscalar or vector meson along with an η or η′ meson are of great phenomenological interest. Their theoretical analysis involves decay mechanisms that are unique to flavor-singlet states, such as their coupling to gluons or their "intrinsic charm" content. These issues are studied systematically in the context of QCD factorization and the heavy-quark expansion. Theory can account for the experimental data on the B → K (*) η (′) branching fractions, albeit within large uncertainties.

AB - Exclusive hadronic B-meson decays into two-body final states consisting of a light pseudoscalar or vector meson along with an η or η′ meson are of great phenomenological interest. Their theoretical analysis involves decay mechanisms that are unique to flavor-singlet states, such as their coupling to gluons or their "intrinsic charm" content. These issues are studied systematically in the context of QCD factorization and the heavy-quark expansion. Theory can account for the experimental data on the B → K (*) η (′) branching fractions, albeit within large uncertainties.

UR - https://www.scopus.com/pages/publications/0037463393

U2 - 10.1016/S0550-3213(02)01091-X

DO - 10.1016/S0550-3213(02)01091-X

M3 - Article

AN - SCOPUS:0037463393

SN - 0550-3213

VL - 651

SP - 225

EP - 248

JO - Nuclear Physics, Section B

JF - Nuclear Physics, Section B

IS - 3

ER -

Flavor-singlet B-decay amplitudes in QCD factorization

Abstract

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