Measurement of ϕ_s and ΔΓ_s at LHCb

2019/01/10 by Batozskaya, Varvara
#FOS: Physical sciences #High Energy Physics - Experiment (hep-ex)

paper · doi:10.48550/arxiv.1901.03213

Abstract

Determination of the mixing-induced C P-violating phase ϕ_s and decay width difference ΔΓ_s in b→ccs decays is one of the main goals of the LHCb experiment. Thanks to the precise prediction of the ϕ_s value within the Standard Model, it represents an excellent probe to search for new physics. The measurements of ϕ_s and ΔΓ_s at LHCb are reviewed including results from the 3.0~fb^-1 dataset accumulated during 2011-2012. Further measurement improvement is expected from the inclusion of results obtained using decay modes with smaller branching fraction.

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