Measurements of CP observables in B0 → D K∗0 decays are presented, where D represents a superposition of D0 and anti-D0 states. The D meson is reconstructed in the two-body final states K+ π−, π+ K−, K+ K− and π+ π−, and, for the first time, in the four-body final states K+ π− π+ π−, π+ K− π+ π− and π+ π− π+ π−. The analysis uses a sample of neutral B mesons produced in proton-proton collisions, corresponding to an integrated luminosity of 1.0, 2.0 and 1.8 fb^−1 collected with the LHCb detector at centre-of-mass energies of √s = 7, 8 and 13 TeV, respectively. First observations of the decays B0 → D(π+ K−) K∗0 and B0 → D(π+ π− π+ π−) K∗0 are obtained. The measured observables are interpreted in terms of the CP-violating weak phase γ.

Aaij, R., Abellán Beteta, C., Adeva, B., Adinolfi, M., Aidala, C., Ajaltouni, Z., et al. (2019). Measurement of CP Observables in the Process B0 → D K*0 with Two- and Four-Body D Decays. JOURNAL OF HIGH ENERGY PHYSICS, 2019(7), 0-29 [10.1007/JHEP08(2019)041].

Measurement of CP Observables in the Process B0 → D K*0 with Two- and Four-Body D Decays

Betti, F.;Capriotti, L.;Carbone, A.;Ferrari, F.;Galli, D.;Gioventù, A.;Patrignani, C.;Perazzini, S.;Pisani, F.;Vagnoni, V.;Zucchelli, S.
2019

Abstract

Measurements of CP observables in B0 → D K∗0 decays are presented, where D represents a superposition of D0 and anti-D0 states. The D meson is reconstructed in the two-body final states K+ π−, π+ K−, K+ K− and π+ π−, and, for the first time, in the four-body final states K+ π− π+ π−, π+ K− π+ π− and π+ π− π+ π−. The analysis uses a sample of neutral B mesons produced in proton-proton collisions, corresponding to an integrated luminosity of 1.0, 2.0 and 1.8 fb^−1 collected with the LHCb detector at centre-of-mass energies of √s = 7, 8 and 13 TeV, respectively. First observations of the decays B0 → D(π+ K−) K∗0 and B0 → D(π+ π− π+ π−) K∗0 are obtained. The measured observables are interpreted in terms of the CP-violating weak phase γ.
2019
Aaij, R., Abellán Beteta, C., Adeva, B., Adinolfi, M., Aidala, C., Ajaltouni, Z., et al. (2019). Measurement of CP Observables in the Process B0 → D K*0 with Two- and Four-Body D Decays. JOURNAL OF HIGH ENERGY PHYSICS, 2019(7), 0-29 [10.1007/JHEP08(2019)041].
Aaij, R.; Abellán Beteta, C.; Adeva, B.; Adinolfi, M.; Aidala, C.A.; Ajaltouni, Z.; Akar, S.; Albicocco, P.; Albrecht, J.; Alessio, F.; Alexander, M.;...espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/701167
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