Published July 12, 2007
| Version v1
Journal article
QCD sum rule study of the masses of light tetraquark scalar mesons
- 1. Research Center for Nuclear Physics, Osaka University, Ibaraki 567-0047 (Japan) and Department of Physics, Peking University, Beijing 100871 (China)
- 2. Research Center for Nuclear Physics, Osaka University, Ibaraki 567-0047 (Japan)
- 3. Department of Physics, Peking University, Beijing 100871 (China)
Description
We study the low-lying scalar mesons of light u, d, s flavors in the QCD sum rule. Having all possible combinations of tetraquark currents in the local form, QCD sum rule analysis has been carefully performed. We found that using the appropriate tetraquark currents, the masses of σ, κ, f0 and a0 mesons appear in the region of 0.6-1 GeV with the expected ordering. The results are compared with that of the conventional q-bar q currents, where the masses are considerably larger
Additional details
Identifiers
- DOI
- 10.1016/j.physletb.2007.05.031;
- arXiv
- arXiv:hep-ph/0609163v3;
- PII
- S0370-2693(07)00600-4;
Publishing Information
- Journal Title
- Physics Letters. Section B
- Journal Volume
- 650
- Journal Issue
- 5-6
- Journal Page Range
- p. 369-372
- ISSN
- 0370-2693
- CODEN
- PYLBAJ
INIS
- Country of Publication
- Netherlands
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 39030411
- Subject category
- S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
- Descriptors DEI
- D QUARKS; FLAVOR MODEL; MASS; MEV RANGE 100-1000; QUANTUM CHROMODYNAMICS; S QUARKS; SCALAR MESONS; SUM RULES; U QUARKS
- Descriptors DEC
- BOSONS; COMPOSITE MODELS; ELEMENTARY PARTICLES; ENERGY RANGE; EQUATIONS; FERMIONS; FIELD THEORIES; HADRONS; MATHEMATICAL MODELS; MESONS; MEV RANGE; PARTICLE MODELS; QUANTUM FIELD THEORY; QUARK MODEL; QUARKS; STRANGE PARTICLES
Optional Information
- Copyright
- Copyright (c) 2007 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.