Abstract
The LHCb experiment has been able to collect the largest sample ever produced of charm-hadron decays, performing a number of measurements of observables related to CP violation in the charm sector. In this document, the most recent results from LHCb on the search of direct CP violation in D0→Ks0Ks0, D(s)+→h+π0 and D(s)+→h+η decays are summarised, in addition to the most precise measurement of time-dependent CP asymmetry in D0→h+h− decays and the first observation of mass difference between neutral charm-meson eigenstates.
Highlights
IntroductionFor a generic hadron M and its CP conjugate M, the following decay amplitudes in the final state f and its CP conjugate f are defined
For a generic hadron M and its CP conjugate M, the following decay amplitudes in the final state f and its CP conjugate f are definedAf = f |H|M, Af = f |H|M, (1)Citation: Betti, F
The analysis of data collected during the LHC Run 2 allowed the most precise measurement of time-dependent CP asymmetry in D0 decays to date to be obtained and a non-zero mass difference between neutral charm-meson eigenstates to be observed
Summary
For a generic hadron M and its CP conjugate M, the following decay amplitudes in the final state f and its CP conjugate f are defined. The most recent results obtained by the LHCb collaboration in the field of CP violation in charm will be summarised, namely the measurements of: CP asymmetry in D0 → Ks0Ks0 decays; CP asymmetry in D(+s) → h+π0 and D(+s) → h+η decays, where h+ denotes a π+ or K+ meson; ∆Y in D0 → K+K− and D0 → π+π− decays; and mixing parameters by using D0 → Ks0π+π− decays.
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