Measurement of CP violation in B[superscript 0] → D[superscript ∓]π[superscript ±] decays
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13130_2018_Article_8447.pdf
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Author(s)
Aaij, R.
Adeva, B.
Adinolfi, M.
Ajaltouni, Z.
Akar, S.
Albicocco, P.
Albrecht, J.
Alessio, F.
Alexander, M.
Alfonso Albero, A.
Date Issued
June 2018
Journal
Journal of High Energy Physics
Publisher
Springer Berlin Heidelberg
Citation
The LHCb collaboration, et al. “Measurement of CP Violation in B[superscript 0] → D[superscript ∓]π[superscript ±] Decays.” Journal of High Energy Physics, vol. 2018, no. 6, June 2018. © 2018 The Authors
Version
Final published version
Abstract
A measurement of the CP asymmetries S[subsscript f] and S[subscript bar over f] in B0 → D[superscript ∓]π[superscript ±] 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[superscript −1]. The CP asymmetries are measured to be S[subscript f] = 0.058 ± 0.020(stat) ± 0.011(syst) and S[subscript bar over f]=0.038±0.020(stat)±0.007(syst) . 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.
MIT Department
Massachusetts Institute of Technology. Department of Physics
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DOI of Published Version
https://doi.org/10.1007/JHEP06(2018)084
