Sigma meson and lowest possible glueball candidate in an extended linear {sigma} model

Journal Article · Tue Oct 23 00:00:00 EDT 2012 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.4763512· OSTI ID:22075662

Mukherjee, Tamal K; Mei, Huang; Qishu, Yan ^[1]

---

1. Institute of High Energy Physics, Chinese Academy of Sciences, Beijing (China) and Theoretical Physics Center for Science Facilities, Chinese Academy of Sciences, Beijing (China)

We formulate an extended linear {sigma} model of a quarkonia nonet and a tetraquark nonet as well as a complex iso-singlet (glueball) field to study the low-lying scalar meson. Chiral symmetry and U{sub A}(1) symmetry and their breaking play important role to shape the scalar meson spectrum in our work. Based on our study we will comment on what may be the mass of the lowest possible scalar and pseudoscalar glueball states. We will also discuss on what may be the nature of the sigma or f{sub 0}(600) meson.

• OSTI ID: 22075662
• Journal Information: AIP Conference Proceedings, Vol. 1492, Issue 1; Conference: QCD-WORK 2012: International workshop on quantum chromodynamics: Theory and experiment, Lecce (Italy), 18-21 Jun 2012; Other Information: (c) 2012 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BAG MODEL
CHIRAL SYMMETRY
COLOR MODEL
GLUEBALLS
MESON SPECTROSCOPY
MESON-MESON INTERACTIONS
QUARKONIUM
RESONANCE PARTICLES
REST MASS
SCALAR MESONS
U-1 GROUPS