TY  - JOUR
AU  - Wang, E.
AU  - Xie, J. J.
AU  - Geng, L. S.
AU  - Oset, E.
PY  - 2019
DA  - 2019//
TI  - The X(4140) and X(4160) resonances in the e(+)e(-) -> gamma J/psi phi reaction
T2  - Chin. Phys. C
JO  - Chinese Physics C
SP  - 113101 - 10pp
VL  - 43
IS  - 11
PB  - Iop Publishing Ltd
KW  - X(4140)
KW  - J/psi phi scattering
KW  - heavy flavor hadrons
KW  - X(4160)
AB  - We investigate the J/psi phi invariant mass distribution in the e(+)e(-) -> gamma J/psi phi reaction at a center-of-mass energy of root s = 4.6 GeV measured by the BESIII collaboration, which concluded that no significant signals were observed for e(+)e(-) -> gamma J/psi phi because of the low statistics. We show, however, that the J/psi phi invariant mass distribution is compatible with the existence of the X(4140) state, appearing as a peak, and a strong cusp structure at the D-s*(D) over bar (s)* threshold, resulting from the molecular nature of the X(4160) state, which provides a substantial contribution to the reaction. This is consistent with our previous analysis of the B+ -> J psi phi K+ decay measured by the LHCb collaboration. We strongly suggest further measurements of this process with more statistics to clarify the nature of the X(4140) and X(4160) resonances.
SN  - 1674-1137
UR  - https://arxiv.org/abs/1806.05113
UR  - https://doi.org/10.1088/1674-1137/43/11/113101
DO  - 10.1088/1674-1137/43/11/113101
LA  - English
N1  - WOS:000493109100008
ID  - Wang_etal2019
ER  -