The decay-time-dependent CP asymmetry in B0 → D*± D∓ decays is measured using a data set corresponding to an integrated luminosity of 9 fb^−1 recorded by the LHCb detector in proton-proton collisions at centre-of-mass energies of 7, 8 and 13 TeV. The CP parameters are measured as S_{D*D} = −0.861 ± 0.077(stat) ± 0.019(syst), ΔS_{D*D} = 0.019 ± 0.075(stat) ± 0.012(syst), C_{D*D} = −0.059 ± 0.092(stat) ± 0.020(syst), ΔC_{D*D} = −0.031 ± 0.092(stat) ± 0.016(syst), A_{D*D} = 0.008 ± 0.014(stat) ± 0.006(syst). The analysis provides the most precise single measurement of CP violation in this decay channel to date. All parameters are consistent with their current world average values.

Aaij, R., Abellán Beteta, C., Ackernley, T., Adeva, B., Adinolfi, M., Afsharnia, H., et al. (2020). Measurement of CP Violation in B0 → D*± D∓ Decays. JOURNAL OF HIGH ENERGY PHYSICS, 2020(3), 0-27 [10.1007/JHEP03(2020)147].

Measurement of CP Violation in B0 → D*± D∓ Decays

Betti, F.;Capriotti, L.;Carbone, A.;Ferrari, F.;Galli, D.;Maccolini, S.;Manuzzi, D.;Patrignani, C.;Perazzini, S.;Pisani, F.;Zucchelli, S.
2020

Abstract

The decay-time-dependent CP asymmetry in B0 → D*± D∓ decays is measured using a data set corresponding to an integrated luminosity of 9 fb^−1 recorded by the LHCb detector in proton-proton collisions at centre-of-mass energies of 7, 8 and 13 TeV. The CP parameters are measured as S_{D*D} = −0.861 ± 0.077(stat) ± 0.019(syst), ΔS_{D*D} = 0.019 ± 0.075(stat) ± 0.012(syst), C_{D*D} = −0.059 ± 0.092(stat) ± 0.020(syst), ΔC_{D*D} = −0.031 ± 0.092(stat) ± 0.016(syst), A_{D*D} = 0.008 ± 0.014(stat) ± 0.006(syst). The analysis provides the most precise single measurement of CP violation in this decay channel to date. All parameters are consistent with their current world average values.
2020
Aaij, R., Abellán Beteta, C., Ackernley, T., Adeva, B., Adinolfi, M., Afsharnia, H., et al. (2020). Measurement of CP Violation in B0 → D*± D∓ Decays. JOURNAL OF HIGH ENERGY PHYSICS, 2020(3), 0-27 [10.1007/JHEP03(2020)147].
Aaij, R.; Abellán Beteta, C.; Ackernley, T.; Adeva, B.; Adinolfi, M.; Afsharnia, H.; Aidala, C.A.; Aiola, S.; Ajaltouni, Z.; Akar, S.; Albicocco, P.; ...espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/772369
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