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Title: Search for the doubly heavy Ξbc0 baryon via decays to D 0 pK −
Author: LHCb Collaboration
Alfonso Albero, Alejandro
Calvo Gómez, Míriam
Camboni, Alessandro
Coquereau, Samuel
Fernandez Tenllado Arribas, J.M.
García Moreno, P.
Garrido Beltrán, Lluís
Gascón Fora, David
Gironella Gironell, Pere
Golobardes, Elisabet
Gómez Fernández, S.
Graciani Díaz, Ricardo
Graugés Pous, Eugeni
Manera Escalero, R.
Marin Benito, Carla
Mauricio, J.
Sánchez Gonzalo, David
Valls Canudas, N.
Vilasis-Cardona, Xavier
Keywords: Experiments
Física de partícules
Gran Col·lisionador d'Hadrons
Particle physics
Large Hadron Collider (France and Switzerland)
Issue Date: 19-Nov-2020
Publisher: Springer Verlag
Abstract: A search for the doubly heavy Ξ0bc baryon using its decay to the D0pK- final state is performed using proton-proton collision data at a centre-of-mass energy of 13 TeV collected by the LHCb experiment between 2016 and 2018, corresponding to an integrated luminosity of 5.4 fb−1. No significant signal is found in the invariant mass range from 6.7 to 7.2 GeV/c2. Upper limits are set at 95% credibility level on the ratio of the Ξ0bc production cross-section times its branching fraction to D0pK− relative to that of the Λ0b→D0pK− decay. The limits are set as a function of the Ξ0bc mass and lifetime hypotheses, in the rapidity range from 2.0 to 4.5 and in the transverse momentum region from 5 to 25 GeV/c. Upper limits range from 1.7 × 10−2 to 3.0 × 10−1 for the considered Ξ0bc mass and lifetime hypotheses.
Note: Reproducció del document publicat a:
It is part of: Journal of High Energy Physics, 2020, num. 95
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ISSN: 1126-6708
Appears in Collections:Articles publicats en revistes (Física Quàntica i Astrofísica)
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