The first measurement of CP asymmetries in the decay B0s → J/ψ anti-K∗(892)0 and an updated measurement of its branching fraction and polarisation fractions are presented. The results are obtained using data corresponding to an integrated luminosity of 3.0 fb^−1 of proton-proton collisions recorded with the LHCb detector at centre-of-mass energies of 7 and 8 TeV. Together with constraints from B0 → J/ψ ρ0, the results are used to constrain additional contributions due to penguin diagrams in the CP-violating phase ϕ_s, measured through B0s decays to charmonium.

Aaij, R., Adeva, B., Adinolfi, M., Affolder, A., Ajaltouni, Z., Akar, S., et al. (2015). Measurement of CP Violation Parameters and Polarisation Fractions in B0s → J/ψ anti-K∗0 Decays. JOURNAL OF HIGH ENERGY PHYSICS, 2015(11), 0-37 [10.1007/JHEP11(2015)082].

Measurement of CP Violation Parameters and Polarisation Fractions in B0s → J/ψ anti-K∗0 Decays

Capriotti, L.;CARBONE, ANGELO;FERRARI, FABIO;GALLI, DOMENICO;MUSSINI, MANUEL;PATRIGNANI, CLAUDIA;PERAZZINI, STEFANO;VAGNONI, VINCENZO MARIA;ZANGOLI, MARIA;ZUCCHELLI, STEFANO
2015

Abstract

The first measurement of CP asymmetries in the decay B0s → J/ψ anti-K∗(892)0 and an updated measurement of its branching fraction and polarisation fractions are presented. The results are obtained using data corresponding to an integrated luminosity of 3.0 fb^−1 of proton-proton collisions recorded with the LHCb detector at centre-of-mass energies of 7 and 8 TeV. Together with constraints from B0 → J/ψ ρ0, the results are used to constrain additional contributions due to penguin diagrams in the CP-violating phase ϕ_s, measured through B0s decays to charmonium.
2015
Aaij, R., Adeva, B., Adinolfi, M., Affolder, A., Ajaltouni, Z., Akar, S., et al. (2015). Measurement of CP Violation Parameters and Polarisation Fractions in B0s → J/ψ anti-K∗0 Decays. JOURNAL OF HIGH ENERGY PHYSICS, 2015(11), 0-37 [10.1007/JHEP11(2015)082].
Aaij, R.; Adeva, B.; Adinolfi, M.; Affolder, A.; Ajaltouni, Z.; Akar, S.; Albrecht, J.; Alessio, F.; Alexander, M.; Ali, S.; Alkhazov, G.; Alvarez Car...espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/519734
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