The mixing-induced CP-violating phase φs in Bs0 and B-s0 decays is measured using the J/ψπ +π - final state in data, taken from 3 fb-1 of integrated luminosity, collected with the LHCb detector in 7 and 8 TeV centre-of-mass pp collisions at the LHC. A time-dependent flavour-tagged amplitude analysis, allowing for direct CP violation, yields a value for the phase φs = 70 ± 68 ± 8 mrad. This result is consistent with the Standard Model expectation and previous measurements.

Measurement of the CP-violating phase φs in B-s0→J/ψπ+π- decays

ANDREOTTI, Mirco;CALABRESE, Roberto;CORVO, Marco;FIORE, Marco;FIORINI, Massimiliano;LUPPI, Eleonora;TELLARINI, Giulia;TOMASSETTI, Luca;
2014

Abstract

The mixing-induced CP-violating phase φs in Bs0 and B-s0 decays is measured using the J/ψπ +π - final state in data, taken from 3 fb-1 of integrated luminosity, collected with the LHCb detector in 7 and 8 TeV centre-of-mass pp collisions at the LHC. A time-dependent flavour-tagged amplitude analysis, allowing for direct CP violation, yields a value for the phase φs = 70 ± 68 ± 8 mrad. This result is consistent with the Standard Model expectation and previous measurements.
2014
R., Aaij; B., Adeva; M., Adinolfi; A., Affolder; Z., Ajaltouni; S., Akar; J., Albrecht; F., Alessio; M., Alexander; S., Ali; G., Alkhazov; P. A., Cart...espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11392/2103613
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