The resonant structure of the radiative decay Lambdab0-> pK-gamma 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 fit and interference fractions between the different components contributing to this final state. Only Lambda resonances decaying to pK- are found to be relevant, where the largest contributions stem from the Lambda(1520), Lambda(1600), Lambda(1800), and Lambda(1890) states.

Amplitude analysis of the Lambdab0 -> pK-gamma decay

Bassi G.
Membro del Collaboration Group
;
Kleijne N.
Membro del Collaboration Group
;
Morello M. J.
Membro del Collaboration Group
;
Passaro D.
Membro del Collaboration Group
;
Pica L.
Membro del Collaboration Group
;
Ribatti R.
Membro del Collaboration Group
;
Riccardi D.
Membro del Collaboration Group
;
2024

Abstract

The resonant structure of the radiative decay Lambdab0-> pK-gamma 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 fit and interference fractions between the different components contributing to this final state. Only Lambda resonances decaying to pK- are found to be relevant, where the largest contributions stem from the Lambda(1520), Lambda(1600), Lambda(1800), and Lambda(1890) states.
2024
Settore FIS/01 - Fisica Sperimentale
Settore PHYS-01/A - Fisica sperimentale delle interazioni fondamentali e applicazioni
Flavour Physics; Hadron-Hadron Scattering; Particle and Resonance Production; Rare Decay
File in questo prodotto:
File Dimensione Formato  
JHEP06(2024)098.pdf

accesso aperto

Tipologia: Published version
Licenza: Creative Commons
Dimensione 3.33 MB
Formato Adobe PDF
3.33 MB Adobe PDF

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11384/156924
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 1
  • ???jsp.display-item.citation.isi??? 0
  • OpenAlex ND
social impact