Why the high lying glueball does not mix with the neighbouring $f_0$

Abstract

Chiral symmetry restoration in high-lying hadron spectra implies that hadrons which belong to different irreducible representations of the parity-chiral group cannot mix. This explains why the $f_0(2102\pm 13)$, which was suggested to be a glueball, and hence must belong to the scalar (0,0) representation of the chiral group, cannot mix with the neighbouring $f_0(2040\pm 38)$, which was interpreted as a $n\bar{n}$ state, and that belongs to the $(1/2,1/2)$ representation of the chiral group. If confirmed, then we have an access to a "true" glueball of QCD.

4 pages, LaTeX, final version, Eur. Phys. J. A 19 (2004) 153

References in corpus (7)

• I = 0 C = +1 mesons from 1920 to 2410 MeV
• Chiral multiplets versus parity doublets in highly excited baryons
• Partial wave analysis of pbar-p annihilation channels in flight with I=1, C=+1
• Does one observe chiral symmetry restoration in baryon spectrum?
• SU(2)_L * SU(2)_R and U(1)_A restorations high in the hadron spectrum and what it tells us about
• Chiral symmetry restoration and the string picture of hadrons
• Further evidence for a large glue component in the f0(1500) meson

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• Chiral multiplets of excited mesons
• Natural Resolution of the Proton Size Puzzle
• Hunting the Scalar Glueball: Prospects for BES III
• Why the OZI rule is so strongly violated in J/Psi decays?