https://doi.org/10.1140/epjc/s10052-022-10212-4
Regular Article - Theoretical Physics
Production of the 
meson at the CEPC
1
Department of Physics, Chongqing University, 401331, Chongqing, People’s Republic of China
2
Chongqing Key Laboratory for Strongly Coupled Physics, 401331, Chongqing, People’s Republic of China
Received:
17
January
2022
Accepted:
12
March
2022
Published online:
21
March
2022
In this paper, we make a detailed study on the production of the , 
, 
, and 
mesons via the three planned running modes (Z, W, and H) at the future Circular Electron–Positron Collider (CEPC). The fragmentation-function and full nonrelativistic QCD approaches are adopted to calculate the production cross sections. Considering the excited states shall decay to the ground state (e.g. 
-state) with almost 
probability, our numerical results show that up to next-to-leading order QCD corrections, there are about 
events to be accumulated via the Z mode (
) of the CEPC, but only about 
and 
events to be accumulated via the W (
) and H (
) modes, respectively. Since the Z mode is the best mode among the three planned modes of the CEPC for studying the production of the , , , and mesons and the differential distributions of these mesons may be measured precisely at this mode, we further present the differential cross sections 
and 
via the Z mode of the CEPC.
© The Author(s) 2022
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