Article ID Journal Published Year Pages File Type
1851051 Physics Letters B 2014 10 Pages PDF
Abstract

The mixing-induced CP  -violating phase ϕsϕs in Bs0 and B¯s0 decays is measured using the J/ψπ+π−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 mradϕs=70±68±8 mrad. This result is consistent with the Standard Model expectation and previous measurements.

Related Topics
Physical Sciences and Engineering Physics and Astronomy Nuclear and High Energy Physics
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