TY  - JOUR
AU  - Martinez Torres, A.
AU  - Khemchandani, K. P.
AU  - Navarra, F. S.
AU  - Nielsen, M.
AU  - Oset, E.
PY  - 2013
DA  - 2013//
TI  - The role of f(0)(1710) in the phi omega threshold peak of J/Psi -> gamma phi omega
T2  - Phys. Lett. B
JO  - Physics Letters B
SP  - 388
EP  - 393
VL  - 719
IS  - 4-5
PB  - Elsevier Science Bv
AB  - We study the process J/Psi -> gamma phi omega, measured by the BES experiment, where a neat peak close to the phi omega threshold is observed and is associated to a scalar meson resonance around 1800 MeV. We make the observation that a scalar resonance coupling to phi omega unavoidably couples strongly to K (K) over bar, but no trace of a peak is seen in the K (K) over bar spectrum of the J/Psi -> gamma K (K) over bar at this energy. This serves us to rule out the interpretation of the observed peak as a signal of a new resonance. After this is done, a thorough study is performed on the production of a pair of vector mesons and how its interaction leads necessarily to a peak in the J/Psi -> gamma phi omega reaction close to the phi omega threshold, due to the dynamical generation of the f(0)(1710) resonance by the vector-vector interaction. We then show that both the shape obtained for the phi omega mass distribution, as well as the strength are naturally reproduced by this mechanism. The work also explains why the phi omega peak is observed in the BES experiment and not in other reactions, like B-+/- -> K-+/-phi omega of Belle.
SN  - 0370-2693
UR  - http://arxiv.org/abs/1210.6392
UR  - https://doi.org/10.1016/j.physletb.2013.01.036
DO  - 10.1016/j.physletb.2013.01.036
LA  - English
N1  - WOS:000315316900020
ID  - MartinezTorres_etal2013
ER  -