Holographic QCD predictions for production and decay of pseudoscalar glueballs

Oct 31, 2016
7 pages
Published in:
  • Phys.Lett.B 770 (2017) 124-130
  • Published: Jul 10, 2017
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Abstract: (Elsevier)
The top–down holographic Witten–Sakai–Sugimoto model for low-energy QCD, augmented by finite quark masses, has recently been found to be able to reproduce the decay pattern of the scalar glueball candidate f0(1710) on a quantitative level. In this Letter we show that this model predicts a narrow pseudoscalar glueball heavier than the scalar glueball and with a very restricted decay pattern involving η or η′ mesons. Production should be either in pairs or in association with η(′) mesons. We discuss the prospect of discovery in high-energy hadron collider experiments through central exclusive production by comparing with η′ pair production.
Note:
  • 9 pages, 4 figures. v3: sync with proof-read version to appear in PLB
  • 11.25.Tq
  • 13.25.Jx
  • 14.40.Be
  • 14.40.Rt
  • quantum chromodynamics: holography
  • glueball: pseudoscalar
  • glueball: production
  • glueball: decay modes
  • glueball: mass