Using initial-state radiation events from a total integrated luminosity of 11.957 fb−1 of eþe− collision data collected at center-of-mass energies between 3.773 and 4.258 GeV with the BESIII detector at BEPCII, the cross section for the process eþe− → ΛΛ ̄ is measured in 16 ΛΛ ̄ invariant mass intervals from the production threshold up to 3.00 GeV=c2. The results are consistent with previous results from BABAR and BESIII, but with better precision and with narrower ΛΛ ̄ invariant mass intervals than BABAR.

Measurement of the e+e−→ΛΛ¯ cross section from threshold to 3.00 GeV using events with initial-state radiation

Garzia, I.;Scodeggio, M.;
2023

Abstract

Using initial-state radiation events from a total integrated luminosity of 11.957 fb−1 of eþe− collision data collected at center-of-mass energies between 3.773 and 4.258 GeV with the BESIII detector at BEPCII, the cross section for the process eþe− → ΛΛ ̄ is measured in 16 ΛΛ ̄ invariant mass intervals from the production threshold up to 3.00 GeV=c2. The results are consistent with previous results from BABAR and BESIII, but with better precision and with narrower ΛΛ ̄ invariant mass intervals than BABAR.
2023
Ablikim, M.; Achasov, M.  N.; Adlarson, P.; Aliberti, R.; Amoroso, A.; An, M.  R.; An, Q.; Bai, Y.; Bakina, O.; Balossino, I.; Ban, Y.; Batozskaya, V....espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11392/2530483
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