The branching fraction of the decay B0s → Ds(*)+ Ds(*)− is measured using pp collision data corresponding to an integrated luminosity of 1.0 fb^−1, collected using the LHCb detector at a center-of-mass energy of 7 TeV. It is found to be B(B0s → Ds(*)+ Ds(*)−) = (3.05 ± 0.10 ± 0.20 ± 0.34)%, where the uncertainties are statistical, systematic, and due to the normalization channel, respectively. The branching fractions of the individual decays corresponding to the presence of one or two Ds*± are also measured. The individual branching fractions are found to be B(B0s → Ds*± Ds∓) = (1.35 ± 0.06 ± 0.09 ± 0.15)%, B(B0s → Ds*+ Ds*−) = (1.27 ± 0.08 ± 0.10 ± 0.14)%. All three results are the most precise determinations to date.

Aaij, R., Abellán Beteta, C., Adeva, B., Adinolfi, M., Affolder, A., Ajaltouni, Z., et al. (2016). Measurement of the B0s → Ds(*)+ Ds(*)− Branching Fractions. PHYSICAL REVIEW D, 93(9), 1-11 [10.1103/PhysRevD.93.092008].

Measurement of the B0s → Ds(*)+ Ds(*)− Branching Fractions

Capriotti, L.;CARBONE, ANGELO;FERRARI, FABIO;GALLI, DOMENICO;MUSSINI, MANUEL;PATRIGNANI, CLAUDIA;PERAZZINI, STEFANO;VAGNONI, VINCENZO MARIA;ZANGOLI, MARIA;ZUCCHELLI, STEFANO
2016

Abstract

The branching fraction of the decay B0s → Ds(*)+ Ds(*)− is measured using pp collision data corresponding to an integrated luminosity of 1.0 fb^−1, collected using the LHCb detector at a center-of-mass energy of 7 TeV. It is found to be B(B0s → Ds(*)+ Ds(*)−) = (3.05 ± 0.10 ± 0.20 ± 0.34)%, where the uncertainties are statistical, systematic, and due to the normalization channel, respectively. The branching fractions of the individual decays corresponding to the presence of one or two Ds*± are also measured. The individual branching fractions are found to be B(B0s → Ds*± Ds∓) = (1.35 ± 0.06 ± 0.09 ± 0.15)%, B(B0s → Ds*+ Ds*−) = (1.27 ± 0.08 ± 0.10 ± 0.14)%. All three results are the most precise determinations to date.
2016
Aaij, R., Abellán Beteta, C., Adeva, B., Adinolfi, M., Affolder, A., Ajaltouni, Z., et al. (2016). Measurement of the B0s → Ds(*)+ Ds(*)− Branching Fractions. PHYSICAL REVIEW D, 93(9), 1-11 [10.1103/PhysRevD.93.092008].
Aaij, R.; Abellán Beteta, C.; Adeva, B.; Adinolfi, M.; Affolder, A.; Ajaltouni, Z.; Akar, S.; Albrecht, J.; Alessio, F.; Alexander, M.; Ali, S.; Alkha...espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/539754
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