A first search for the Ξbc+ → J/ψ Ξc+ decay is performed by the LHCb experiment with a data sample of proton-proton collisions, corresponding to an integrated luminosity of 9 fb^−1 recorded at centre-of-mass energies of 7, 8, and 13 TeV. Two peaking structures are seen with a local (global) significance of 4.3 (2.8) and 4.1 (2.4) standard deviations at masses of 6571 and 6694 MeV/c^2, respectively. Upper limits are set on the Ξbc+ baryon production cross-section times the branching fraction relative to that of the Bc+ → J/ψ Ds+ decay at centre-of-mass energies of 8 and 13 TeV, in the Ξbc+ and in the Bc+ rapidity and transverse-momentum ranges from 2.0 to 4.5 and 0 to 20 GeV/c, respectively. Upper limits are presented as a function of the Ξbc+ mass and lifetime.

Aaij, R., Abdelmotteleb, A., Abellan Beteta, C., Abudinén, F., Ackernley, T., Adeva, B., et al. (2023). Search for the Doubly Heavy Baryon Ξbc+ Decaying to J/ψ Ξc+. CHINESE PHYSICS C, 47(9), 1-13 [10.1088/1674-1137/ace9c8].

Search for the Doubly Heavy Baryon Ξbc+ Decaying to J/ψ Ξc+

Carbone, A.;Ferrari, F.;Galli, D.;Manuzzi, D.;Patrignani, C.;Villa, A.;Zucchelli, S.;
2023

Abstract

A first search for the Ξbc+ → J/ψ Ξc+ decay is performed by the LHCb experiment with a data sample of proton-proton collisions, corresponding to an integrated luminosity of 9 fb^−1 recorded at centre-of-mass energies of 7, 8, and 13 TeV. Two peaking structures are seen with a local (global) significance of 4.3 (2.8) and 4.1 (2.4) standard deviations at masses of 6571 and 6694 MeV/c^2, respectively. Upper limits are set on the Ξbc+ baryon production cross-section times the branching fraction relative to that of the Bc+ → J/ψ Ds+ decay at centre-of-mass energies of 8 and 13 TeV, in the Ξbc+ and in the Bc+ rapidity and transverse-momentum ranges from 2.0 to 4.5 and 0 to 20 GeV/c, respectively. Upper limits are presented as a function of the Ξbc+ mass and lifetime.
2023
Aaij, R., Abdelmotteleb, A., Abellan Beteta, C., Abudinén, F., Ackernley, T., Adeva, B., et al. (2023). Search for the Doubly Heavy Baryon Ξbc+ Decaying to J/ψ Ξc+. CHINESE PHYSICS C, 47(9), 1-13 [10.1088/1674-1137/ace9c8].
Aaij, R.; Abdelmotteleb, A.S.W.; Abellan Beteta, C.; Abudinén, F.; Ackernley, T.; Adeva, B.; Adinolfi, M.; Afsharnia, H.; Agapopoulou, C.; Aidala, C.A...espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/952376
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