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SUMMARY:History\, status\, and future perspectives of glueballs - Francesc
 o Giacosa (Kielce\, Poland &amp\; Goethe University\, Frankfurt am Main)
DTSTART:20161115T150000Z
DTEND:20161115T160000Z
UID:TALK68383@talks.cam.ac.uk
CONTACT:Alexander Mitov
DESCRIPTION:Glueballs\, i.e. bound states of gluons\, were predicted since
  the early days of Quantum Chromodynamics. They are expected to exist beca
 use gluons interact strongly with themselves (`gluons shine in their own l
 ight'). Indeed\, within Lattice QCD a full spectrum of glueballs has been 
 obtained. The lightest glueball is predicted to be a scalar state and has 
 a mass about 1.7 GeV: as a consequence\,intensive research concentrated on
  the resonances f0(1500) and f0(1710) as possible glueball candidates. How
 ever\, for other quantum numbers\, the situation is much less clear: futur
 e experimental results and theoretical work are needed in order to identif
 y candidates and in order to study their decay properties. In this talk\, 
 we review the theoretical status of glueballs' research: different models 
 are compared\, both for what concerns the scalar glueball and the other qu
 antum numbers. The role of mixing of glueballs with ordinary quark-antiqua
 rk states is addressed. Perspectives for future research on this important
  subject of hadronic physics are described.
LOCATION:Rutherford Seminar Room B
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