Measurement of the CP asymmetry in B⁻ → Ds⁻D⁰ and B⁻ → D⁻D⁰ decays
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13130_2018_Article_8311.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
May 2018
Journal
Journal of High Energy Physics
Publisher
Springer Berlin Heidelberg
Citation
Aaij, R. "Measurement of the CP asymmetry in B⁻ → Ds⁻D⁰ and B⁻ → D⁻D⁰ decays." Journal of High Energy Physics 2018 (May 2018): 160 © 2018 The Author(s)
Version
Final published version
Abstract
The CP asymmetry in in B⁻ → Ds⁻D⁰ and B⁻ → D⁻D⁰ decays is measured using LHCb data corresponding to an integrated luminosity of 3.0 fb⁻¹, collected in pp collisions at centre-of-mass energies of 7 and 8 TeV. The results are A[superscript CP](B⁻ → D[subscript s]⁻D⁰) = (- 0.4 ± 0.5 ± 0.5)% and A[superscript CP](B⁻ → D⁻D⁰) = (2.3 ± 2.7 ± 0.4)%, where the first uncertainties are statistical and the second systematic. This is the first measurement of A[superscript CP](B⁻ → D[subscript s]⁻D⁰) and the most precise determination of A[superscript CP](B⁻ → D⁻D⁰). Neither result shows evidence of CP violation. Keywords: B physics; CP violation; Flavor physics; Hadron-Hadron scattering (experiments)
MIT Department
Massachusetts Institute of Technology. Department of Physics
Massachusetts Institute of Technology. Laboratory for Nuclear Science
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DOI of Published Version
https://doi.org/10.1007/JHEP05(2018)160
