Published August 6, 2004
| Version v1
Journal article
Heavy-to-light-quark decays with two-loop accuracy
- 1. Institute for Nuclear Research, Russian Academy of Sciences, Moscow, 117312 (Russian Federation)
- 2. Department of Physics, University of Alberta, Edmonton, AB T6G 2J1 (Canada)
Description
We present a determination of a new class of three-loop Feynman diagrams describing heavy-to-light transitions. We apply it to find the O(αs2) corrections to the top quark decay t→bW and to the distribution of lepton invariant mass in the semileptonic b quark decay b→ulν. We also confirm the previously determined total rate of that process as well as the O(α2) corrections to the muon lifetime
Additional details
Identifiers
- DOI
- 10.1103/PhysRevLett.93.062001;
- arXiv
- arXiv:hep-ph/0403221v1;
Publishing Information
- Journal Title
- Physical Review Letters
- Journal Volume
- 93
- Journal Issue
- 6
- Journal Page Range
- p. 062001-062001.4
- ISSN
- 0031-9007
- CODEN
- PRLTAO
INIS
- Country of Publication
- United States
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 36025973
- Subject category
- S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
- Descriptors DEI
- ACCURACY; B QUARKS; CORRECTIONS; D QUARKS; FEYNMAN DIAGRAM; LIFETIME; MASS; MUONS; PERTURBATION THEORY; SEMILEPTONIC DECAY; T QUARKS; U QUARKS; W MINUS BOSONS; W PLUS BOSONS
- Descriptors DEC
- BEAUTY PARTICLES; BOSONS; DECAY; DIAGRAMS; ELEMENTARY PARTICLES; FERMIONS; INFORMATION; INTERMEDIATE BOSONS; INTERMEDIATE VECTOR BOSONS; LEPTONS; PARTICLE DECAY; POSTULATED PARTICLES; QUARKS; TOP PARTICLES; WEAK PARTICLE DECAY
Optional Information
- Notes
- (c) 2004 The American Physical Society