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Glueballs and Hybrid Mesons

  • Claude Amsler
Chapter
Part of the Lecture Notes in Physics book series (LNP, volume 949)

Abstract

A brief phenomenological review on the status of glueballs and hybrid mesons will now be presented (tetraquarks will be dealt width in Chap. 16). Among the i = 0 scalar mesons at least two candidates, the f0(1500) and the f0(1710), dispute the status of ground state glueballs. The first excited glueball state, expected to be a tensor meson, has not been identified yet, although more tensor states have been reported than can be accommodated in the 2++ \(q\overline {q}\) nonets. There is evidence for two isovector mesons, π1(1400) and π1(1600), with exotic quantum numbers 1−+ that are incompatible with \(q\overline {q}\) states and which could be hybrid mesons or tetraquark states.

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Copyright information

© The Author(s) 2018

Authors and Affiliations

  • Claude Amsler
    • 1
    • 2
  1. 1.Stefan Meyer InstituteAustrian Academy of SciencesViennaAustria
  2. 2.Physics InstituteUniversity of ZurichZurichSwitzerland

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