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Please use this identifier to cite or link to this item: https://hdl.handle.net/2445/186395
First study of the CP-violating phase and decay-width difference in Bs0→ψ(2S)ϕ decays
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A time-dependent angular analysis of B0 s → ψ(2S)φ decays is performed using data recorded by the LHCb experiment. The data set corresponds to an integrated luminosity of 3.0 fb−1 collected during Run 1 of the LHC. The CP-violating phase and decay-width difference of the B0 s system are measured to be φs = 0.23+0.29 −0.28 ± 0.02 rad and s = 0.066+0.041 −0.044 ± 0.007 ps−1, respectively, where the first uncertainty is statistical and the second systematic. This is the first time that φs and s have been measured in a decay containing the ψ(2S) resonance.
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BADALOV, A., et al. First study of the CP-violating phase and decay-width difference in Bs0→ψ(2S)ϕ decays. Physics Letters B. 2016. Vol. 762, num. 253-262. ISSN 0370-2693. [consulted: 16 of May of 2026]. Available at: https://hdl.handle.net/2445/186395