Published March 24, 2006
| Version v1
Journal article
Radiative Decays and the Nature of Heavy Quarkonia
Creators
- 1. Departament d'Estructura i Constituents de la Materia, Universitat de Barcelona, Diagonal 647, E-08028 Barcelona, Catalonia (Spain)
Description
We argue that the photon spectra in radiative decays of various heavy quarkonium states provide important information on their nature. If two of these states are in the strong coupling regime, we are able to produce a parameter-free model-independent formula, which holds at next-to-leading order and includes both direct and fragmentation contributions. When the formula is checked against recent CLEO data it favors Υ(2S) and Υ(3S) in the strong coupling regime and disfavors Υ(1S) in it
Additional details
Identifiers
- DOI
- 10.1103/PhysRevLett.96.111801;
- arXiv
- arXiv:hep-ph/0511167v2;
Publishing Information
- Journal Title
- Physical Review Letters
- Journal Volume
- 96
- Journal Issue
- 11
- Journal Page Range
- p. 111801-111801.4
- ISSN
- 0031-9007
- CODEN
- PRLTAO
INIS
- Country of Publication
- United States
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 37083122
- Subject category
- S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
- Descriptors DEI
- CESR STORAGE RING; FRAGMENTATION; MESONS; MULTIPARTICLE SPECTROMETERS; PARTICLE IDENTIFICATION; PHOTONS; QUANTUM CHROMODYNAMICS; QUARKONIUM; RADIATIVE DECAY; RESONANCE PARTICLES; STRONG-COUPLING MODEL
- Descriptors DEC
- BOSONS; DECAY; ELEMENTARY PARTICLES; FIELD THEORIES; HADRONS; MASSLESS PARTICLES; MATHEMATICAL MODELS; MEASURING INSTRUMENTS; PARTICLE DECAY; PARTICLE MODELS; QUANTUM FIELD THEORY; SPECTROMETERS; STORAGE RINGS
Optional Information
- Notes
- (c) 2006 The American Physical Society