English

Is $f_0(1500)$ a Scalar Glueball?

High Energy Physics - Phenomenology 2008-11-26 v1

Abstract

Following the discovery of two new scalar mesons, f0(1370)f_0(1370) and f0(1500)f_0(1500) at the Low Energy Antiproton Ring at CERN, we argue that the observed properties of this pair are incompatible with them both being \qqbar\qqbar mesons. We show instead that f0(1500)f_0(1500) is compatible with the ground state glueball expected around 1500 MeV mixed with the nearby states of the 0++0^{++} QQˉQ\bar{Q} nonet. Tests of this hypothesis include the prediction of a further scalar state, f0(15001800)f_0'(1500 - 1800) which couples strongly to KKˉK\bar{K}, ηη\eta\eta and ηη\eta\eta'. Signatures for a possible tensor glueball at \sim 2 GeV are also considered.

Keywords

Cite

@article{arxiv.hep-ph/9507326,
  title  = {Is $f_0(1500)$ a Scalar Glueball?},
  author = {Claude Amsler and Frank Close},
  journal= {arXiv preprint arXiv:hep-ph/9507326},
  year   = {2008}
}

Comments

11 figures; PS files or hard copy available from C Amsler