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Measurement of $CPV$ in Charmless Two-Body $B$-Hadron Decays to Charged Hadrons

We present the latest results from the LHCb experiment on the measurement of the time-dependent $C\!P$ asymmetries in $B^0 \rightarrow \pi ^+ \pi ^-$ and $B^0_{\mathrm{s}} \rightarrow K^+ K^-$ in addition to the time-integrated $C\!P$ asymmetries in $B^0 \rightarrow K^+ \pi ^-$ and $B^0_{\mathrm{s}}...

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Detalles Bibliográficos
Autor principal: Bertholet, Emilie
Lenguaje:eng
Publicado: Springer Nature 2019
Materias:
Acceso en línea:https://dx.doi.org/10.1007/978-3-030-29622-3_34
http://cds.cern.ch/record/2729043
Descripción
Sumario:We present the latest results from the LHCb experiment on the measurement of the time-dependent $C\!P$ asymmetries in $B^0 \rightarrow \pi ^+ \pi ^-$ and $B^0_{\mathrm{s}} \rightarrow K^+ K^-$ in addition to the time-integrated $C\!P$ asymmetries in $B^0 \rightarrow K^+ \pi ^-$ and $B^0_{\mathrm{s}} \rightarrow \pi ^+ K^-$. The analysis uses a data sample of pp collisions corresponding to an integrated luminosity of 3.0 fb$^{-1}$, collected with the LHCb detector at center-of-mass energies of 7 and 8 TeV. Evidence for $C\!P$ violation in $B^0_{\mathrm{s}} \rightarrow K^+ K^-$ is found for the first time with a significance of 4.0 standard deviations.