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- Title
Measurement of CP violation in B<sup>0</sup>→ D<sup>∗±</sup>D<sup>∓</sup> decays.
- Authors
Aaij, R.; Abellán Beteta, C.; Ackernley, T.; Adeva, B.; Adinolfi, M.; Afsharnia, H.; Aidala, C. A.; Aiola, S.; Ajaltouni, Z.; Akar, S.; Albicocco, P.; Albrecht, J.; Alessio, F.; Alexander, M.; Alfonso Albero, A.; Alkhazov, G.; Alvarez Cartelle, P.; Alves, A. A. Jr; Amato, S.; Amhis, Y.
- Abstract
The decay-time-dependent CP asymmetry in B0→ D∗±D∓ decays is mea- sured 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 ± 0.077 stat ± 0.019 syst , Δ S D ∗ D = 0.019 ± 0.075 stat ± 0.012 syst , C D ∗ D = − 0.059 ± 0.092 stat ± 0.020 syst , ΔC D ∗ D = − 0.031 ± 0.092 stat ± 0.016 syst , A D ∗ D = 0.008 ± 0.014 stat ± 0.006 syst. <graphic href="13130_2020_12680_Article_Equa.gif"></graphic> 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.
- Publication
Journal of High Energy Physics, 2020, Vol 2020, Issue 3, p1
- ISSN
1126-6708
- Publication type
Article
- DOI
10.1007/JHEP03(2020)147