Measurement of CP violation in B0 → D∓π± decays

Aaij, R, Adeva, B, Adinolfi, M, Ajaltouni, Z, Akar, S, Albicocco, P, Albrecht, J, Alessio, F, Alexander, M, Alfonso Albero, A
et al (show 780 more authors) (2018) Measurement of CP violation in B0 → D∓π± decays. Journal of High Energy Physics, 2018 (6). 147-.

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The decay-time-dependent $CP$ asymmetry in $B^0 \to D^{*\pm}D^{\mp}$ decays is measured using a data set corresponding to an integrated luminosity of $9$fb$^{-1}$ recorded by the LHCb detector in proton-proton collisions at centre-of-mass energies of 7, 8 and 13 TeV. The $CP$ parameters are measured as $ S_{D^*D} = -0.861 \pm 0.077\,\text{(stat)} \pm 0.019 \,\text{(syst)}\,, $ $ \Delta S_{D^*D} = 0.019 \pm 0.075 \,\text{(stat)} \pm 0.012 \,\text{(syst)} \,, $ $ C_{D^*D} = -0.059 \pm 0.092 \,\text{(stat)} \pm 0.020 \,\text{(syst)} \,, $ $ \Delta C_{D^*D} = -0.031 \pm 0.092 \,\text{(stat)} \pm 0.016 \,\text{(syst)} \,, $ $ {\cal A}_{D^*D} = 0.008 \pm 0.014 \,\text{(stat)} \pm 0.006 \,\text{(syst)}\,. $ The analysis provides the most precise single measurement of $CP$ violation in this decay channel to date. All parameters are consistent with their current world average values.

Item Type: Article
Additional Information: All figures and tables, along with any supplementary material and additional information, are available at
Uncontrolled Keywords: B physics, CP violation, Electroweak interaction, Flavor physics, Hadron, Hadron scattering (experiments)
Depositing User: Symplectic Admin
Date Deposited: 13 Aug 2018 06:43
Last Modified: 14 Mar 2024 23:32
DOI: 10.1007/JHEP06(2018)084
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