Aula Conversi (Dipartimento di Fisica - Ed. G. Marconi)
Aula Conversi
Dipartimento di Fisica - Ed. G. Marconi
Description
The quarkonia spectroscopy has recently got a renewed interest due to
the discovery of several missing states and numerous unexpected
quarkonium-like resonances. These studies were performed at Charm and
Beauty factories, at Tevatron and more recently at the LHC
experiments. While the conventional q anti-q states are well described
by phenomenological potential models, many of the newly discovered
quarkonium-like mesons do not seem to fit into the q anti-q
conventional spectrum. There is an increasing evidence that some of
these new states are "exotic", that means new forms of hadronic matter
such as mesonic molecules, tetraquarks or pentaquarks, hybrid mesons
and also hadroquarkonia. In this seminar the recent activities of the
LHCb experiment in this field are described and an outlook
for Run II of the LHC is provided. The very recent results on Pc(4450) and Pc(4380) pentaquarks and Z(4430) tetraquark will be discussed in detail.
