The first observation and study of two new baryonic structures in the final state Ξb0π+π- and the confirmation of the Ξb(6100)- state in the Ξb-π+π- 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 Ξb∗0, Ξb′- and Ξb∗- resonances are measured with improved precision. The new decay mode of the Ξb0 baryon to the Ξc+ π- π+ π- final state is observed and exploited for the first time in these measurements.

Aaij, R., Abdelmotteleb, A., Abellan Beteta, C., Abudinen, F., Ackernley, T., Adeva, B., et al. (2023). Observation of New Baryons in the Ξb- π+π- and Ξb0 π+π- Systems. PHYSICAL REVIEW LETTERS, 131(17), 171901 [10.1103/PhysRevLett.131.171901].

Observation of New Baryons in the Ξb- π+π- and Ξb0 π+π- Systems

Borsato M.;Calvi M.;Capelli S.;Carniti P.;Fazzini D.;Garcia Pardinas J.;Gotti C.;Martinazzoli L.;Martinelli M.;Minotti A.;Petruzzo M.;Pizzichemi M.;Salomoni M.;
2023

Abstract

The first observation and study of two new baryonic structures in the final state Ξb0π+π- and the confirmation of the Ξb(6100)- state in the Ξb-π+π- 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 Ξb∗0, Ξb′- and Ξb∗- resonances are measured with improved precision. The new decay mode of the Ξb0 baryon to the Ξc+ π- π+ π- final state is observed and exploited for the first time in these measurements.
Articolo in rivista - Articolo scientifico
Hadron spectroscopy, Hadron Collider
English
2023
131
17
171901
171901
none
Aaij, R., Abdelmotteleb, A., Abellan Beteta, C., Abudinen, F., Ackernley, T., Adeva, B., et al. (2023). Observation of New Baryons in the Ξb- π+π- and Ξb0 π+π- Systems. PHYSICAL REVIEW LETTERS, 131(17), 171901 [10.1103/PhysRevLett.131.171901].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/467051
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