1304.7080 (Kunihiko Terasaki)

Decay Property of Axial-Vector Tetra-Quark Mesons    [PDF]

Kunihiko Terasaki

Decay property of hidden-charm and exotic axial-vector tetra-quark mesons is studied. It is seen that estimated width of hidden-charm iso-triplet partners of X(3872) with an opposite charge-conjugation property as axial-vector tetra-quark mesons, although still crude, is compatible with the measured ones of recently observed Z_c(3900). It is pointed out that an indication of eta-pi^0 peak around 3.2 GeV observed in gamma-gamma collisions gives a clue to select a realistic model of multi-quark mesons.

View original: http://arxiv.org/abs/1304.7080