Measurements of the CP-violating phase ϕs at LHCb

Varvara Batozskaya

doi:10.1051/epjconf/201818202009

EPJ

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Proceedings

Open Access

EPJ Web of Conferences 182, 02009 (2018)
https://doi.org/10.1051/epjconf/201818202009

Measurements of the CP-violating phase ϕ_s at LHCb

Varvara Batozskaya^a on behalf of the LHCb Collaboration

National Centre for Nuclear Research (NCBJ), Warsaw, Poland

^a e-mail: varvara.batozskaya@cern.ch

Published online: 3 August 2018

Abstract

The measurement of the mixing-induced CP-violating phase ϕ_s in the B⁰_s - B⁰_s system is one of the key goals of the LHCb experiment. It has been measured at the LHCb collaboration exploiting the Run I data set and using several decay channels. In particular, the most recent Run I result has been obtained analyzing B⁰_s → J/ψK⁺K^- candidates in the mass region above the ϕ(1020) resonance. Despite the large improvements in the sensitivity of ϕs during the last decade, the precision is still limited by the available statistics.

© The Authors, published by EDP Sciences 2018

This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.