A search forCP violation in charmless four-body decays of Lambda(0)(b) and Xi(0)(b) baryons with a proton and three charged mesons in the final state is performed. To cancel out production and detection charge-asymmetry effects, the search is carried out by measuring the difference between the CP asymmetries in a charmless decay and in a decay with an intermediate charmed baryon with the same particles in the final state. The data sample used was recorded in 2011 and 2012 with the LHCb detector and corresponds to an integrated luminosity of 3 fb(-1). A total of 18 CP asymmetries are considered, either accounting for the full phase space of the decays or exploring specific regions of the decay kinematics. No significant CP-violation effect is observed in any of the measurements.

Aaij, R., Adeva, B., Adinolfi, M., Ajaltouni, Z., Akar, S., Albrecht, J., et al. (2019). Measurements of CP asymmetries in charmless four-body Λb0 and Ξb0 decays. THE EUROPEAN PHYSICAL JOURNAL. C, PARTICLES AND FIELDS, 79(9) [10.1140/epjc/s10052-019-7218-1].

Measurements of CP asymmetries in charmless four-body Λb0 and Ξb0 decays

Belloli N.;Borsato M.;Calvi M.;Carniti P.;Fazzini D.;Gotti C.;Martinelli M.;Petruzzo M.;
2019

Abstract

A search forCP violation in charmless four-body decays of Lambda(0)(b) and Xi(0)(b) baryons with a proton and three charged mesons in the final state is performed. To cancel out production and detection charge-asymmetry effects, the search is carried out by measuring the difference between the CP asymmetries in a charmless decay and in a decay with an intermediate charmed baryon with the same particles in the final state. The data sample used was recorded in 2011 and 2012 with the LHCb detector and corresponds to an integrated luminosity of 3 fb(-1). A total of 18 CP asymmetries are considered, either accounting for the full phase space of the decays or exploring specific regions of the decay kinematics. No significant CP-violation effect is observed in any of the measurements.
Articolo in rivista - Articolo scientifico
LHCb; Flavour Physics; CP violation; LHC Collider; Particle Physics
English
2019
79
9
745
open
Aaij, R., Adeva, B., Adinolfi, M., Ajaltouni, Z., Akar, S., Albrecht, J., et al. (2019). Measurements of CP asymmetries in charmless four-body Λb0 and Ξb0 decays. THE EUROPEAN PHYSICAL JOURNAL. C, PARTICLES AND FIELDS, 79(9) [10.1140/epjc/s10052-019-7218-1].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/248004
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