Charmless charged two-body b-hadron decays, with kaons and pions in the final state, are an optimal test of the Standard Model validity. Indeed these decays receive important contributions from loop-level processes making the CP asymmetries sensitive to transitions beyond the Standard Model. A precise measurement of these CP observables is crucial for a better determination of the quark-flavour mixing phases. In this article we report the results obtained by LHCb on the time-dependent and time-integrated CP asymmetries using events of charmless b-hadron two-body decays collected during the Run 1 data taking period and corresponding to 3 fb.
Fazzini, D. (2021). Measurements of CP violation in charmless 2-body B-meson decays at LHCb. Intervento presentato a: 40th International Conference on High Energy Physics, ICHEP 2020 - 28 July 2020 through 6 August 2020, Virtual, Prague [10.22323/1.390.0372].
Measurements of CP violation in charmless 2-body B-meson decays at LHCb
Fazzini, D
2021
Abstract
Charmless charged two-body b-hadron decays, with kaons and pions in the final state, are an optimal test of the Standard Model validity. Indeed these decays receive important contributions from loop-level processes making the CP asymmetries sensitive to transitions beyond the Standard Model. A precise measurement of these CP observables is crucial for a better determination of the quark-flavour mixing phases. In this article we report the results obtained by LHCb on the time-dependent and time-integrated CP asymmetries using events of charmless b-hadron two-body decays collected during the Run 1 data taking period and corresponding to 3 fb.
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