Study of e+e- →2 (p p ¯) at center-of-mass energies between 4.0 and 4.6 GeV STUDY of e+e- →2 (p p ¯) at ... ABLIKIM M. et al.

(BESIII Collaboration)

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Abstract

Using data taken at 23 center-of-mass energies between 4.0 and 4.6 GeV with the BESIII detector at the Beijing Electron Positron Collider and with a total integrated luminosity of approximately 15 fb-1, the process e+e-→2(pp¯) is studied for the first time. The Born cross sections for e+e-→2(pp¯) are measured, and no significant structure is observed in the lineshape. The baryon pair (pp and p¯p¯) invariant mass spectra are consistent with phase space, therefore no hexaquark or di-baryon state is found.

Original languageEnglish (US)
Article number052003
JournalPhysical Review D
Volume103
Issue number5
DOIs
StatePublished - Mar 12 2021
Externally publishedYes

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© 2021 authors. Published by the American Physical Society.

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