TY  - JOUR
AU  - Ji, T.
AU  - Dong, X. K.
AU  - Albaladejo, M.
AU  - Du, M. L.
AU  - Guo, F. K.
AU  - Nieves, J.
AU  - Zou, B. S.
PY  - 2023
DA  - 2023//
TI  - Understanding the 0(++) and 2(++) charmonium(-like) states near 3.9 GeV
T2  - Sci. Bull.
JO  - Science Bulletin
SP  - 688
EP  - 697
VL  - 68
IS  - 7
PB  - Elsevier
KW  - Charmonium(-like) states
KW  - Hadronic molecules
KW  - Heavy quark spin symmetry
KW  - Exotic hadrons
KW  - Hadron-hadron interactions
AB  - We propose that the X(3915) observed in the J/psi x channel is the same state as the chi(c2)(3930), and the X(3960), observed in the Ds+Ds- channel, is an S-wave Ds+Ds- hadronic molecule. In addition, the J(PC) = 0(++) component in the B+ -> D+D-K+ assigned to the X(3915) in the current Review of Particle Physics has the same origin as the X(3960), which has a mass around 3.94 GeV. To check the proposal, the available data in the D (D) over bar and Ds+Ds- channels from both B decays and gamma gamma fusion reaction are analyzed considering both the D (D) over bar -D-s(D) over bar (s)-D*(D) over bar*-D-s*(D) over bar (s)* coupled channels with 0(++) and a 2(++) state introduced additionally. It is found that all the data in different processes can be simultaneously well reproduced, and the coupled-channel dynamics produce four hidden-charm scalar molecular states with masses around 3.73, 3.94, 3.99 and 4.23 GeV, respectively. The results may deepen our understanding of the spectrum of charmonia as well as of the interactions between charmed hadrons.
SN  - 2095-9273
UR  - https://arxiv.org/abs/2212.00631
UR  - https://doi.org/10.1016/j.scib.2023.02.034
DO  - 10.1016/j.scib.2023.02.034
LA  - English
N1  - WOS:000985290600001
ID  - Ji_etal2023
ER  -