Amplitude analysis of the Λ 0 b → pK−γ decay

The resonant structure of the radiative decay Λ 0 b → pK−γ in the region of proton-kaon invariant-mass up to 2.5 GeV/c2 is studied using proton-proton collision data recorded at centre-of-mass energies of 7, 8, and 13 TeV collected with the LHCb detector, corresponding to a total integrated luminosi...

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Detalles Bibliográficos
Autores: 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, Alfonso Albero, Alejandro, Vazquez Gomez, Ricardo, LHCb Collaboration
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2024
País:España
Institución:Universidad de Barcelona
Repositorio:Dipòsit Digital de la UB
OAI Identifier:oai:diposit.ub.edu:2445/222018
Acceso en línea:https://hdl.handle.net/2445/222018
Access Level:acceso abierto
Palabra clave:Hadrons
Física de partícules
Cromodinàmica quàntica
Particle physics
Quantum chromodynamics
Descripción
Sumario:The resonant structure of the radiative decay Λ 0 b → pK−γ in the region of proton-kaon invariant-mass up to 2.5 GeV/c2 is studied using proton-proton collision data recorded at centre-of-mass energies of 7, 8, and 13 TeV collected with the LHCb detector, corresponding to a total integrated luminosity of 9 fb−1 . Results are given in terms of ft and interference fractions between the diferent components contributing to this fnal state. Only Λ resonances decaying to pK− are found to be relevant, where the largest contributions stem from the Λ(1520), Λ(1600), Λ(1800), and Λ(1890) states.

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