TY  - JOUR
AU  - Aceti, F.
AU  - Bayar, M.
AU  - Dias, J. M.
AU  - Oset, E.
PY  - 2014
DA  - 2014//
TI  - Prediction of a Z(c)(4000) state and relationship with the claimed Z(c)(4025)
T2  - Eur. Phys. J. A
JO  - European Physical Journal A
SP  - 103
EP  - 13pp
VL  - 50
IS  - 6
PB  - Springer
AB  - After discussing the OZI suppression of one light meson exchange in the interaction of with isospin I = 1 , we study the contribution of the two-pion exchange to the interaction and the exchange of heavy vectors, J/psi for diagonal transitions and D-* for transitions of to J/psi rho. We find these latter mechanisms to be weak, but enough to barely bind the system in J = 2 with a mass around 4000 MeV, while the effect of the two-pion exchange is a net attraction, though weaker than that from heavy-vector exchange. We discuss this state and try to relate it to the Z (c) (4025) state, above the threshold, claimed in an experiment at BES from an enhancement of the distribution close to threshold. Together with the results from a recent reanalysis of the BES experiment showing that it is compatible with a J = 2 state below threshold around 3990 MeV, we conclude that the BES experiment could show the existence of the state that we find in our approach.
SN  - 1434-6001
UR  - http://arxiv.org/abs/arXiv:1401.2076
UR  - https://doi.org/10.1140/epja/i2014-14103-1
DO  - 10.1140/epja/i2014-14103-1
LA  - English
N1  - WOS:000338332900001
ID  - Aceti_etal2014
ER  -