The mixing-induced CP-violating phase φs in B0s and anti-B0s decays is measured using the J/ψ π+ 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.

R. Aaij, B. Adeva, M. Adinolfi, A. Affolder, Z. Ajaltouni, S. Akar, et al. (2014). Measurement of the CP-Violating Phase φs in anti-B0s → J/ψ π+ π− Decays. PHYSICS LETTERS. SECTION B, 736, 186-195 [10.1016/j.physletb.2014.06.079].

Measurement of the CP-Violating Phase φs in anti-B0s → J/ψ π+ π− Decays

CARBONE, ANGELO;GALLI, DOMENICO;MOGGI, NICCOLO';MUSSINI, MANUEL;PATRIGNANI, CLAUDIA;PERAZZINI, STEFANO;VAGNONI, VINCENZO MARIA;ZANGOLI, MARIA;
2014

Abstract

The mixing-induced CP-violating phase φs in B0s and anti-B0s decays is measured using the J/ψ π+ 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, et al. (2014). Measurement of the CP-Violating Phase φs in anti-B0s → J/ψ π+ π− Decays. PHYSICS LETTERS. SECTION B, 736, 186-195 [10.1016/j.physletb.2014.06.079].
R. Aaij; B. Adeva; M. Adinolfi; A. Affolder; Z. Ajaltouni; S. Akar; J. Albrecht; F. Alessio; M. Alexander; S. Ali; G. Alkhazov; P. Alvarez Cartelle; A...espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/320117
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