Published November 18, 2003
| Version v1
Journal article
The Lightest Scalar Nonet and Its Mixing Angle
Description
We show that the κ, a0(980), σ and the f0(980) resonances constitute the lightest scalar nonet in three different ways. First, by establishing the continuous movement of the poles from the physical to a SU(3) limit. Second, by performing an analysis of the couplings of the scalar mesons to pairs of pseudoscalars and third, by analysing the couplings of the scalars with two pseudoscalars SU(3) scattering eigenstates. Every of the last two methods agree that the mixing angle between the singlet and the octet I = 0 states is θ = 19 deg. ± 5 deg. so that the σ is mainly the singlet and the f0(980) the isosinglet octet state
Additional details
Identifiers
- DOI
- 10.1063/1.1632204;
Publishing Information
- Journal Title
- AIP Conference Proceedings
- Journal Volume
- 688
- Journal Issue
- 1
- Journal Page Range
- p. 167-182
- ISSN
- 0094-243X
- CODEN
- APCPCS
Conference
- Title
- An interesting puzzle for QCD'
- Acronym
- High energy physics workshop 'Scalar mesons
- Dates
- 16-18 May 2003
- Place
- Utica, NY (United States)
INIS
- Country of Publication
- United States
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 36068788
- Subject category
- S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
- Resource subtype / Literary indicator
- Conference
- Descriptors DEI
- A0-980 MESONS; D S MESONS; EIGENSTATES; F0-980 MESONS; MASS DIFFERENCE; MASS FORMULAE; MESON-MESON INTERACTIONS; QUANTUM CHROMODYNAMICS; RESONANCE PARTICLES; SCATTERING; SU-3 GROUPS; WEINBERG ANGLE
- Descriptors DEC
- BOSONS; CHARM PARTICLES; CHARMED MESONS; ELEMENTARY PARTICLES; FIELD THEORIES; HADRON-HADRON INTERACTIONS; HADRONS; INTERACTIONS; LIE GROUPS; MESONS; PARTICLE INTERACTIONS; PARTICLE PROPERTIES; PSEUDOSCALAR MESONS; QUANTUM FIELD THEORY; SCALAR MESONS; STRANGE MESONS; STRANGE PARTICLES; SU GROUPS; SYMMETRY GROUPS
Optional Information
- Notes
- (c) 2003 American Institute of Physics