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Measurement of the CP asymmetry in B − → Ds − D 0 and B − → D − D 0 decays

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Abstract: The CP asymmetry in B− → D− s 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 ACP (B− → D− s D0 ) = (−0.4 ± 0.5 ± 0.5)% and ACP (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 ACP (B− → D− s D0 ) and the most precise determination of ACP (B− → D−D0 ). Neither result shows evidence of CP violation.

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Journal of High Energy Physics, 2018, vol. 2018, num. 5, p. 1-17

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cc-by (c) LHCb Collaboration (UB: Alfonso Albero, A. et al., 2018

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Articles publicats en revistes (Física Quàntica i Astrofísica)

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Large Hadron Collider (France and Switzerland)

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Measurement of the CP asymmetry in B − → Ds − D 0 and B − → D − D 0 decays