# Measurement of $CP$ violation in $B^{0}\rightarrow D^{\mp}\pi^{\pm}$ decays

Abstract : A measurement of the CP asymmetries S$_{f}$ and ${S}_{\overline{f}}$ in B$^{0}$ → D$^{∓}$π$^{±}$ decays is reported. The decays are reconstructed in a dataset collected with the LHCb experiment in proton-proton collisions at centre-of-mass energies of 7 and 8 TeV and corresponding to an integrated luminosity of 3.0 fb$^{−1}$. The CP asymmetries are measured to be S$_{f}$ = 0.058 ± 0.020(stat) ± 0.011(syst) and ${S}_{\overline{f}}=0.038\pm 0.020\left(\mathrm{stat}\right)\pm 0.007\left(\mathrm{syst}\right)$ . These results are in agreement with, and more precise than, previous determinations. They are used to constrain angles of the unitarity triangle, | sin (2β + γ) | and γ, to intervals that are consistent with the current world-average values.
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Journal articles

https://hal.archives-ouvertes.fr/hal-01802060
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Submitted on : Monday, May 28, 2018 - 10:43:18 PM
Last modification on : Wednesday, October 9, 2019 - 6:30:33 PM

### Citation

Roel Aaij, Bernardo Adeva, Marco Adinolfi, Ziad Ajaltouni, Simon Akar, et al.. Measurement of $CP$ violation in $B^{0}\rightarrow D^{\mp}\pi^{\pm}$ decays. JHEP, 2018, 06, pp.084. ⟨10.1007/JHEP06(2018)084⟩. ⟨hal-01802060⟩

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