Speaker
侃 陈
(Peking University)
Description
With a quark level interaction, we give a unified description of the
loosely bound molecular systems. Using the Pc states as inputs to
fix the interaction strength of light quark-quark pairs, we
reproduce the observed Pcs and Tcc states and predict
another narrow T'cc state with quantum numbers
J=1, I=0. If we require a satisfactory description of
the Tcc and Pc states simultaneously, our framework
prefers the assignments of the Pc(4440) and Pc(4457) as
the [Sigma_c\bar{D}^*]_{J=1/2}^{I=1/2} and
[\Sigma_c\bar{D}^*]_{J=3/2}^{I=1/2} states, respectively. We
propose the isospin criterion to explain naturally why the
experimentally observed Tcc, Pc, and Pcs molecular
candidates prefer the lowest isospin numbers. We also predict the
loosely bound states for the bottom di-hadrons.
| Presentation type | Oral |
|---|
Primary author
侃 陈
(Peking University)
Co-authors
Lu Meng
(Peking University)
Prof.
Shi-Lin ZHU
(Peking University)
Dr
波 王
(河北大学)
Dr
锐 陈
(北京大学)
