Measurement of e+e- → pK-Λ + c.c. cross sections between 4.009 GeV and 4.951 GeV

Measurement of e+e- → †’pK-Λ + c.c. cross sections between 4.009 GeV and 4.951 GeV

Ablikim, M. (författare): Inst High Energy Phys, Beijing 100049, Peoples R China

Kupsc, Andrzej (författare): Uppsala universitet,Kärnfysik,Dept Fundamental Res, PL-02-093 Warsaw, Poland

Zu, J. (författare): State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China;Univ Sci & Technol China, Hefei 230026, Peoples R China

(creator_code:org_t)

Springer, 2023
2023
Engelska.
Ingår i: Journal of High Energy Physics (JHEP). - : Springer. - 1126-6708 .- 1029-8479. ; :12

Relaterad länk:: https://doi.org/10.1...; visa fler...; https://uu.diva-port... (primary) (Raw object); https://urn.kb.se/re...; https://doi.org/10.1...; visa färre...

Abstract Ämnesord

Stäng

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-->-Lambda+. are measured for the first time. By fitting these energy-dependent cross sections, we search for the excited psi states psi(4160) and psi(4415), and the vector charmonium-like states psi(4230), psi(4360), and psi(4660). No evidence for these is observed and the upper limits on the branching fractions of these states decaying into -Lambda+.. are set at the 90% confidence level.

Av författaren/redakt...: Ablikim, M.; Adlarson, Patrik; Johansson, Tord; Kupsc, Andrzej; Schönning, Karin ...; Thorén, Viktor; visa fler...; Wolke, Magnus; Zu, J.; visa färre...

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