• Medientyp: E-Artikel
  • Titel: Search for the rare decay of charmed baryon Λc+ into the pμ+μ− final state
  • Beteiligte: Aaij, R.; Abdelmotteleb, A. S. W.; Abellan Beteta, C.; Abudinén, F.; Ackernley, T.; Adefisoye, A. A.; Adeva, B.; Adinolfi, M.; Adlarson, P.; Agapopoulou, C.; Aidala, C. A.; Ajaltouni, Z.; Akar, S.; Akiba, K.; Albicocco, P.; Albrecht, J.; Alessio, F.; Alexander, M.; Aliouche, Z.; Alvarez Cartelle, P.; Amalric, R.; Amato, S.; Amey, J. L.; Amhis, Y.; [...]
  • Erschienen: American Physical Society (APS), 2024
  • Erschienen in: Physical Review D, 110 (2024) 5
  • Sprache: Englisch
  • DOI: 10.1103/physrevd.110.052007
  • ISSN: 2470-0010; 2470-0029
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  • Beschreibung: 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 CERN, for the LHCb Collaboration 2024 CERN