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

A search for the nonresonant Λþ c → pμþμ− 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 t...

Full description

Bibliographic Details
Authors: Brossa Gonzalo, Arnau, Calefice, Lukas, Comerma Montells, Albert, Garcia Moreno, Paula, Garrido Beltrán, Lluís, Gioventù, Alessandra, Gironella Gironell, Pere, Gomez Fernandez, Sergio, Graugés Pous, Eugeni, Lobo Salvia, Aniol, López Huertas, Albert, Manera Escalero, Rafel, Marin Benito, Carla, Mauricio Ferre, Joan, Vazquez Gomez, Ricardo, LHCb Collaboration
Format: article
Status:Published version
Publication Date:2024
Country:España
Institution:Universidad de Barcelona
Repository:Dipòsit Digital de la UB
OAI Identifier:oai:diposit.ub.edu:2445/221465
Online Access:https://hdl.handle.net/2445/221465
Access Level:Open access
Keyword:Quarks
Col·lisions (Física nuclear)
Barions
Collisions (Nuclear physics)
Baryons
Description
Summary:A search for the nonresonant Λþ c → pμþμ− 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 Λþ c → pμþμ− decay is determined to be 2.9ð3.2Þ × 10−8 at 90%ð95%Þ confidence level. The branching fractions in the dimuon invariant-mass regions dominated by the η, ρ and ω resonances are also determined.

Similar Items