Published January 12, 2007
| Version v1
Journal article
Estimate of B(B→Xsγ) at O(αs2)
Creators
- 1. Theoretical Physics Division, CERN, CH-1211 Geneva 23 (Switzerland)
- 2. Institute of Theoretical Physics, Warsaw University, PL-00-681 Warsaw (Poland)
- 3. Yerevan Physics Institute, 375036 Yerevan (Armenia)
- 4. Institut fuer Theoretische Physik, Universitaet Bern, CH-3012 Bern (Switzerland)
- 5. Institut fuer Theoretische Physik und Astrophysik, Universitaet Wuerzburg, D-97074 Wuerzburg (Germany)
- 6. Department of Physics, University of Alberta, AB T6G 2J1 Edmonton (Canada)
- 7. Physikalisches Institut, Albert-Ludwigs-Universtitaet, D-79104 Freiburg (Germany)
- 8. INFN, Torino and Dipartimento di Fisica Teorica, Universita di Torino, I-10125 Torino (Italy)
- 9. Institut fuer Theoretische Teilchenphysik, Universitaet Karlsruhe (Thailand), D-76128 Karlsruhe (Germany)
- 10. Institut fuer Theoretische Physik, Universitaet Zuerich, CH-8057 Zuerich (Switzerland)
- 11. SLAC, Stanford University, Stanford, California 94309 (United States)
- 12. Deutsches Elektronen-Synchrotron DESY, D-15738 Zeuthen (Germany)
Description
Combining our results for various O(αs2) corrections to the weak radiative B-meson decay, we are able to present the first estimate of the branching ratio at the next-to-next-to-leading order in QCD. We find B(B→Xsγ)=(3.15±0.23)x10-4 for Eγ>1.6 GeV in the B-meson rest frame. The four types of uncertainties: nonperturbative (5%), parametric (3%), higher-order (3%), and mc-interpolation ambiguity (3%) have been added in quadrature to obtain the total error
Additional details
Identifiers
- DOI
- 10.1103/PhysRevLett.98.022002;
- arXiv
- arXiv:hep-ph/0609232v2;
Publishing Information
- Journal Title
- Physical Review Letters
- Journal Volume
- 98
- Journal Issue
- 2
- Journal Page Range
- p. 022002-022002.4
- ISSN
- 0031-9007
- CODEN
- PRLTAO
INIS
- Country of Publication
- United States
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 38024555
- Subject category
- S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
- Descriptors DEI
- B MESONS; BRANCHING RATIO; CORRECTIONS; ERRORS; GEV RANGE 01-10; INTERPOLATION; PARTICLE DECAY; QUADRATURES; QUANTUM CHROMODYNAMICS
- Descriptors DEC
- BEAUTY MESONS; BEAUTY PARTICLES; BOSONS; DECAY; DIMENSIONLESS NUMBERS; ELEMENTARY PARTICLES; ENERGY RANGE; FIELD THEORIES; GEV RANGE; HADRONS; MATHEMATICAL SOLUTIONS; MESONS; NUMERICAL SOLUTION; PSEUDOSCALAR MESONS; QUANTUM FIELD THEORY
Optional Information
- Notes
- (c) 2007 The American Physical Society