The element jVcbj of the Cabibbo-Kobayashi-Maskawa matrix is measured using semileptonic B0sdecays produced in proton-proton collision data collected with the LHCb detector at center-of-mass energies of 7 and 8 TeV, corresponding to an integrated luminosity of 3 fb−1. Rates of B0s → D−s μþνμ andB0s → D−s μþνμ decays are analyzed using hadronic form-factor parametrizations derived either by Caprini, Lellouch and Neubert (CLN) or by Boyd, Grinstein and Lebed (BGL). The measured values of jVcbj areð41.4 0.6 0.9 1.2Þ × 10−3 and ð42.3 0.8 0.9 1.2Þ × 10−3 in the CLN and BGL parametrization, respectively. The first uncertainty is statistical, the second systematic, and the third is due to the external inputs used in the measurement. These results are in agreement with those obtained from decays of Bþ and B0 mesons. They are the first determinations of jVcbj at a hadron-collider experiment and the first using B0s meson decays.

Measurement of |Vcb | with Bs0 → Ds (∗)- μ+νμ decays / Aaij, R., Abellán Beteta, C., Ackernley, T., Adeva, B., Adinolfi, M., Afsharnia, H., Aidala, C.A., Aiola, S., Ajaltouni, Z., Akar, S., Albicocco, P., Albrecht, J., Alessio, F., Alexander, M., Alfonso Albero, A., Alkhazov, G., Alvarez Cartelle, P., Alves, A.A., Amato, S., Amhis, Y., et al.. - In: PHYSICAL REVIEW D. - ISSN 2470-0029. - 101:7(2020). [10.1103/PhysRevD.101.072004]

Measurement of |Vcb | with Bs0 → Ds (∗)- μ+νμ decays

Capriotti, L.;Casse, G.;Sarti, A.;Sciubba, A.;
2020

Abstract

The element jVcbj of the Cabibbo-Kobayashi-Maskawa matrix is measured using semileptonic B0sdecays produced in proton-proton collision data collected with the LHCb detector at center-of-mass energies of 7 and 8 TeV, corresponding to an integrated luminosity of 3 fb−1. Rates of B0s → D−s μþνμ andB0s → D−s μþνμ decays are analyzed using hadronic form-factor parametrizations derived either by Caprini, Lellouch and Neubert (CLN) or by Boyd, Grinstein and Lebed (BGL). The measured values of jVcbj areð41.4 0.6 0.9 1.2Þ × 10−3 and ð42.3 0.8 0.9 1.2Þ × 10−3 in the CLN and BGL parametrization, respectively. The first uncertainty is statistical, the second systematic, and the third is due to the external inputs used in the measurement. These results are in agreement with those obtained from decays of Bþ and B0 mesons. They are the first determinations of jVcbj at a hadron-collider experiment and the first using B0s meson decays.
2020
B physics; Hadron-Hadron scattering (experiments); heavy quark production; spectroscopy
01 Pubblicazione su rivista::01a Articolo in rivista
Measurement of |Vcb | with Bs0 → Ds (∗)- μ+νμ decays / Aaij, R., Abellán Beteta, C., Ackernley, T., Adeva, B., Adinolfi, M., Afsharnia, H., Aidala, C.A., Aiola, S., Ajaltouni, Z., Akar, S., Albicocco, P., Albrecht, J., Alessio, F., Alexander, M., Alfonso Albero, A., Alkhazov, G., Alvarez Cartelle, P., Alves, A.A., Amato, S., Amhis, Y., et al.. - In: PHYSICAL REVIEW D. - ISSN 2470-0029. - 101:7(2020). [10.1103/PhysRevD.101.072004]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/1579748
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