Giuseppe Marongiu

Search for the rare decay of charmed baryon Λc+ into the pμ+μ- final state

Brundu D.;Contu A.;De Angelis C.;Dettori F.;Dordei F.;Fabiano F.;Litvinov R.;Manca G.;Oldeman R.;Saitta B.;Sun J.;
2024-01-01

Abstract

A search for the nonresonant Λc+→pμ+μ- decay is performed using proton-proton collision data recorded at a center-of-mass energy of 13 TeV by the LHCb experiment, corresponding to an integrated luminosity of 5.4 fb-1. No evidence for the decay is found in the dimuon invariant-mass regions where the expected contributions of resonances is subdominant. The upper limit on the branching fraction of the Λc+→pμ+μ- decay is determined to be 2.9(3.2)×10-8 at 90%(95%) confidence level. The branching fractions in the dimuon invariant-mass regions dominated by the η, ρ and ω resonances are also determined.
2024
Inglese
110
5
052007
13
https://journals.aps.org/prd/abstract/10.1103/PhysRevD.110.052007
Esperti anonimi
scientifica
Aaij, R.; Abdelmotteleb, A. S. W.; Abellan Beteta, C.; Abudinen, F.; Ackernley, T.; Adefisoye, A. A.; Adeva, B.; Adinolfi, M.; Adlarson, P.; Agapopoul ...espandi
1.1 Articolo in rivista
info:eu-repo/semantics/article
1 Contributo su Rivista::1.1 Articolo in rivista
262
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