First study of the CP-violating phase and decay-width difference in Bs0→ψ(2S)φ decays
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چکیده
Article history: Received 17 August 2016 Received in revised form 5 September 2016 Accepted 15 September 2016 Available online 20 September 2016 Editor: M. Doser A time-dependent angular analysis of Bs →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 Bs 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. © 2016 The Author(s). Published by Elsevier B.V. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/). Funded by SCOAP3.
منابع مشابه
Aaij, R. et al. (2013) Measurement of CP violation and the Bs0 meson decay width difference with Bs0→J/ψK+K- and Bs0→J/ψπ+π- decays
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