A search for the B0s → D*± D∓ decay is performed using proton-proton collision data at centre-of-mass energies of 7, 8 and 13 TeV collected by the LHCb experiment, corresponding to an integrated luminosity of 9 fb^−1. The decay is observed with a high significance and its branching fraction relative to the B0 → D*± D∓ decay is measured to be B(B0s → D*± D∓)/B(B0 → D*± D ∓) = 0.137 ± 0.017 ± 0.002 ± 0.006, where the first uncertainty is statistical, the second systematic and the third is due to the uncertainty on the ratio of the B0s and B0 hadronisation fractions.

Aaij, R., Abellán Beteta, C., Ackernley, T., Adeva, B., Adinolfi, M., Afsharnia, H., et al. (2021). Observation of the B0s → D*± D∓ Decay. JOURNAL OF HIGH ENERGY PHYSICS, 2021(3), 1-18 [10.1007/JHEP03(2021)099].

Observation of the B0s → D*± D∓ Decay

Betti, F.;Capriotti, L.;Carbone, A.;Ferrari, F.;Galli, D.;Maccolini, S.;Manuzzi, D.;Patrignani, C.;Perazzini, S.;Pisani, F.;Zucchelli, S.;
2021

Abstract

A search for the B0s → D*± D∓ decay is performed using proton-proton collision data at centre-of-mass energies of 7, 8 and 13 TeV collected by the LHCb experiment, corresponding to an integrated luminosity of 9 fb^−1. The decay is observed with a high significance and its branching fraction relative to the B0 → D*± D∓ decay is measured to be B(B0s → D*± D∓)/B(B0 → D*± D ∓) = 0.137 ± 0.017 ± 0.002 ± 0.006, where the first uncertainty is statistical, the second systematic and the third is due to the uncertainty on the ratio of the B0s and B0 hadronisation fractions.
2021
Aaij, R., Abellán Beteta, C., Ackernley, T., Adeva, B., Adinolfi, M., Afsharnia, H., et al. (2021). Observation of the B0s → D*± D∓ Decay. JOURNAL OF HIGH ENERGY PHYSICS, 2021(3), 1-18 [10.1007/JHEP03(2021)099].
Aaij, R.; Abellán Beteta, C.; Ackernley, T.; Adeva, B.; Adinolfi, M.; Afsharnia, H.; Aidala, C.A.; Aiola, S.; Ajaltouni, Z.; Akar, S.; Albrecht, J.; A...espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/848630
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