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Measurement of CP violation in B 0 → D ∗± D ∓ decays

Published version
Peer-reviewed

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Authors

Aaij, R. 
Abellán Beteta, C. 
Ackernley, T. 
Adeva, B. 
Adinolfi, M. 

Abstract

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 asSD∗D=−0.861±0.077stat±0.019syst, ΔSD∗D=0.019±0.075stat±0.012syst, CD∗D=−0.059±0.092stat±0.020syst, ΔCD∗D=−0.031±0.092stat±0.016syst, AD∗D=0.008±0.014stat±0.006syst. 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.

Description

Keywords

Regular Article - Experimental Physics, B physics, CP violation, Electroweak interaction, Flavor physics, Hadron- Hadron scattering (experiments)

Journal Title

Journal of High Energy Physics

Conference Name

Journal ISSN

1029-8479

Volume Title

2020

Publisher

Springer Berlin Heidelberg