Speaker
Yan Lyu
(school of physics Peking Uniersity)
Description
We present a first study on a pair of triply charmed baryons, $\Omega_{ccc}\Omega_{ccc}$ in the $^1S_0$ channel (the most charming dibaryon), on the basis of the HAL QCD method.
The calculations are perfomed on the $(2+1)$-flavor lattice QCD configurations with nearly physical light-quark masses and physical charm-quark mass.
We show that the system with the Coulomb repulsion taking into account the charge form factor of $\Omega_{ccc}$ leads to the sacttering length $a^\mathrm{C}_0\simeq-19$ fm and the effective range $r^\mathrm{C}_\mathrm{eff}\simeq0.45$ fm,
which indicates $\Omega_{ccc}\Omega_{ccc}$ is located in the unitary regime.
Primary author
Yan Lyu
(school of physics Peking Uniersity)
Co-authors
Hui Tong
(school of physics Peking Uniersity)
Sinya Aoki
(YITP, Kyoto University)
Dr
Takaya Miyamoto
(RIKEN)
Prof.
Takumi Doi
(RIKEN)
Dr
Takuya Sugiura
(RIKEN)
Prof.
Tetsuo Hatsuda
(RIKEN)
Prof.
杰 孟
(北京大学)
