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First study of the CP-violating phase and decay-width difference in decays
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文摘
A time-dependent angular analysis of View the MathML source decays is performed using data recorded by the LHCb experiment. The data set corresponds to an integrated luminosity of a5f05ef5491799399403726f19">View the MathML source collected during Run 1 of the LHC. The CP  -violating phase and decay-width difference of the View the MathML source system are measured to be View the MathML source and a5">View the MathML source, respectively, where the first uncertainty is statistical and the second systematic. This is the first time that ϕs and ΔΓs have been measured in a decay containing the ψ(2S) resonance.

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