In:
Journal of High Energy Physics, Springer Science and Business Media LLC, Vol. 2023, No. 12 ( 2023-12-04)
Abstract:
Using e + e − collision datasets corresponding to a total integrated luminosity of 21.7 fb − 1 collected with the BESIII detector at the BEPCII collider at center-of-mass energies ranging from 4.009 GeV to 4.951 GeV, the energy-dependent cross sections of $$ {e}^{+}{e}^{-}\to p{K}^{-}\overline{\Lambda}+c.c. $$ e + e − → p K − Λ ¯ + c . c . are measured for the first time. By fitting these energy-dependent cross sections, we search for the excited ψ states ψ (4160) and ψ (4415), and the vector charmonium-like states ψ (4230), ψ (4360), and ψ (4660). No evidence for these is observed and the upper limits on the branching fractions of these states decaying into $$ p{K}^{-}\overline{\Lambda}+c.c. $$ p K − Λ ¯ + c . c . are set at the 90% confidence level.
Type of Medium:
Online Resource
ISSN:
1029-8479
DOI:
10.1007/JHEP12(2023)027
Language:
English
Publisher:
Springer Science and Business Media LLC
Publication Date:
2023
detail.hit.zdb_id:
2027350-2
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