Abstract
Measurement of the mixing-induced CP-violating phase Φ<inf>s</inf> in B0<inf>s</inf> decays is of prime importance in probing new physics. Here 7421 ± 105 signal events from the dominantly CP-odd final state J/ψπ+π- are selected in 1 fb-1 of pp collision data collected at √ s = 7 TeV with the LHCb detector. A timedependent fit to the data yields a value of Φ<inf>s</inf> = -0.019+0.173+0.004 <inf>-0.174-0.003</inf> rad, consistent with the Standard Model expectation. No evidence of direct CP violation is found.
Original language | English |
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Pages (from-to) | 378-386 |
Journal | Physics Letters B |
Volume | 713 |
Issue number | 4-5 |
DOIs | |
Publication status | Published - 2012 |