The first observation and study of two new baryonic structures in the final state Xib0pi+pi- and the confirmation of the Xib(6100)- state in the Xib-pi+pi- decay mode are reported using proton-proton collision data collected by the LHCb experiment, corresponding to an integrated luminosity of 9 fb-1. In addition, the properties of the known Xib*0, Sigmab'- and Sigmab*- resonances are measured with improved precision. The new decay mode of the Sigmab0 baryon to the Sigmac+ pi- pi+ pi- final state is observed and exploited for the first time in these measurements.

Observation of New Baryons in the Xib- pi+pi- and Xib0 pi+pi- Systems

Bassi G.
Membro del Collaboration Group
;
Kleijne N.
Membro del Collaboration Group
;
Morello M. J.
Membro del Collaboration Group
;
Pica L.
Membro del Collaboration Group
;
Ribatti R.
Membro del Collaboration Group
;
2023

Abstract

The first observation and study of two new baryonic structures in the final state Xib0pi+pi- and the confirmation of the Xib(6100)- state in the Xib-pi+pi- decay mode are reported using proton-proton collision data collected by the LHCb experiment, corresponding to an integrated luminosity of 9 fb-1. In addition, the properties of the known Xib*0, Sigmab'- and Sigmab*- resonances are measured with improved precision. The new decay mode of the Sigmab0 baryon to the Sigmac+ pi- pi+ pi- final state is observed and exploited for the first time in these measurements.
Observation of New Baryons in the Ξb- π+π- and Ξb0 π+π- Systems
2023
Settore FIS/01 - Fisica Sperimentale
Settore PHYS-01/A - Fisica sperimentale delle interazioni fondamentali e applicazioni
Decay mode; Final state; Integrated luminosity; Property; Proton proton collisions; Atomic physics; Hadrons
   Beautiful Flavours: Discovering New Physics with B-hadrons and Tau-leptons
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11384/154024
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