Measurement of the mixing-induced CP-violating phase Phi(s) in anti-Bs0 decays is of prime importance in the probing new physics. Here 7421+-105 signal events from√ dominantly CP-odd final state J /Psi pi+ pi- are selected in 1 fb-1 of pp collision data collected at s = 7 TeV with the LHCb detector. A time-dependent fit to the data yields a value of Phi(s) = (-0.019+0.173-0.174+0.004-0.003) rad, consistent with the Standard Model expectation. No evidence of direct CP violation is found.

Measurement of the CP-violating phase Φs in B0s → J/ψπ+π- decays / R., A., C., A.B., B., A., M., A., C., A., A., A., Z., A., J., A., F., A., M., A., S., A., G., A., P., A.C., A. A., A., S., A., Y., A., J., A., R. B., A., O., A.G., F., A., et al.. - In: PHYSICS LETTERS. SECTION B. - ISSN 0370-2693. - STAMPA. - 713:4-5(2012), pp. 378-386. [10.1016/j.physletb.2012.06.032]

Measurement of the CP-violating phase Φs in B0s → J/ψπ+π- decays

BIZZETI, Andrea;
2012

Abstract

Measurement of the mixing-induced CP-violating phase Phi(s) in anti-Bs0 decays is of prime importance in the probing new physics. Here 7421+-105 signal events from√ dominantly CP-odd final state J /Psi pi+ pi- are selected in 1 fb-1 of pp collision data collected at s = 7 TeV with the LHCb detector. A time-dependent fit to the data yields a value of Phi(s) = (-0.019+0.173-0.174+0.004-0.003) rad, consistent with the Standard Model expectation. No evidence of direct CP violation is found.
2012
713
4-5
378
386
Measurement of the CP-violating phase Φs in B0s → J/ψπ+π- decays / R., A., C., A.B., B., A., M., A., C., A., A., A., Z., A., J., A., F., A., M., A., S., A., G., A., P., A.C., A. A., A., S., A., Y., A., J., A., R. B., A., O., A.G., F., A., et al.. - In: PHYSICS LETTERS. SECTION B. - ISSN 0370-2693. - STAMPA. - 713:4-5(2012), pp. 378-386. [10.1016/j.physletb.2012.06.032]
R., Aaij; C., Abellan Beteta; B., Adeva; M., Adinolfi; C., Adrover; A., Affolder; Z., Ajaltouni; J., Albrecht; F., Alessio; M., Alexander; S., Ali; G....espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11380/745997
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