Regular Article - Theoretical Physics
Production of excited doubly heavy baryons at the super-Z factory
Department of Physics, Guangxi Normal University, 541004, Guilin, China
2 Guangxi Key Laboratory of Nuclear Physics and Technology, Guangxi Normal University, 541004, Guilin, China
3 Center for High Energy Physics, Peking University, 100871, Beijing, China
4 School of Physics, Peking University, 100871, Beijing, China
Accepted: 24 August 2023
Published online: 14 September 2023
In the framework of nonrelativistic QCD, the excited doubly heavy baryons are thoroughly studied via the channel , which takes place at the collision energy Z-pole. represents b or c quark for the production of , , and , respectively. All of the intermediate diquark states in P-wave, , , , , , and with , 1, or 2, are taken into account. The cross sections and differential distributions, including the transverse momentum, rapidity, angular, and invariant mass, are discussed for the excited baryons production. We find that the contributions of , , and in P-wave are found to be 3.97, 5.08, and 5.89, respectively, compared to S-wave. Supposing that all excited states can decay into the ground state 100%, the total events , , and would be produced at the Super-Z Factory with a high luminosity up to .
© The Author(s) 2023
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