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Please use this identifier to cite or link to this item: https://hdl.handle.net/2445/185632
Measurement of the flavour-specific CP-violating asymmetry a(sl)(s) in B-s(0) decays
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The CP-violating asymmetry a s sl is studied using semileptonic decays of B0 s and B0 s mesons produced in pp collisions at a centre-of-mass energy of 7 TeV at the LHC, exploiting a data sample corresponding to an integrated luminosity of 1.0 fb−1 . The reconstructed final states are D± s µ ∓, with the D± s particle decaying in the φπ± mode. The D± s µ ∓ yields are summed over B0 s and B0 s initial states, and integrated with respect to decay time. Data-driven methods are used to measure efficiency ratios. We obtain a s sl = (−0.06 ± 0.50 ± 0.36)%, where the first uncertainty is statistical and the second systematic.
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CAMBONI, Alessandro, et al. Measurement of the flavour-specific CP-violating asymmetry a(sl)(s) in B-s(0) decays. Physics Letters B. 2014. Vol. 728, num. 607-615. ISSN 0370-2693. [consulted: 7 of June of 2026]. Available at: https://hdl.handle.net/2445/185632