Study of $e^{+}{e}^{-}\to 2(p\bar{p})$ at center-of-mass energies between 4.0 and 4.6 GeV

Abstract

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

arXiv comment8 pages, 4 figures

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Cited by in corpus (4)

• Measurement of integrated luminosities at BESIII for data samples at center-of-mass energies between 4.0 and 4.6 GeV
• Measurement of $e^{+}{e}^{-}\to \Lambda \bar{\Lambda }\eta$ from 3.5106 to 4.6988 GeV and study of $\Lambda \bar{\Lambda }$ mass threshold enhancement
• Cross section measurements of $e^{+}{e}^{-}\to \Phi K^{+}{K}^{-}$ and $e^{+}{e}^{-}\to \Phi K_S^0{K}_S^0$ at center-of-mass energies between 3.7730 GeV and 4.7008 GeV
• Observation of $e^{+}{e}^{-}\to pp\bar{p}\bar{n}{\pi }^{-}+c.c.$