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.

Study of e+e- →2 (p p ¯) at center-of-mass energies between 4.0 and 4.6 GeV

Amoroso A.;Bianchi F.;Bortone A.;Destefanis M.;De Mori F.;Greco M.;Lavezzi L.;Maggiora M.;Marcello S.;Sosio S.;Spataro S.;
2021-01-01

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.
2021
Inglese
Esperti anonimi
103
5
052003-1
052003-9
9
1 – prodotto con file in versione Open Access (allegherò il file al passo 6 - Carica)
262
500
Ablikim M.; Achasov M.N.; Adlarson P.; Ahmed S.; Albrecht M.; Aliberti R.; Amoroso A.; An Q.; Anita; Bai X.H.; Bai Y.; Bakina O.; Ferroli R.B.; Baloss...espandi
info:eu-repo/semantics/article
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2318/1796691
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