Search for direct CP violation in D0 -&gt; h- h+ modes using semileptonic B decays
Creators: name: LHCb Collaboration
name: Aaij, R.
name: Beteta, C. Abellan
name: Adeva, B.
name: Adinolfi, M.
name: Adrover, C.
name: Affolder, A.
name: Ajaltouni, Z.
name: Albrecht, J.
name: Alessio, F.
name: Alexander, M.
name: Ali, S.
name: Alkhazov, G.
name: Cartelle, P. Alvarez
name: Alves, A. A.
name: Amato, S.
name: Amerio, S.
name: Amhis, Y.
name: Anderlini, L.
name: Anderson, J.
name: Andreassen, R.
name: Appleby, R. B.
name: Gutierrez, O. Aquines
name: Archilli, F.
name: Artamonov, A.
name: Artuso, M.
name: Aslanides, E.
name: Auriemma, G.
name: Bachmann, S.
name: Back, J. J.
name: Baesso, C.
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name: Barlow, R. J.
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name: Bauer, Th.
name: Bay, A.
name: Beddow, J.
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name: Belogurov, S.
name: Belous, K.
name: Belyaev, I.
name: Ben-Haim, E.
name: Benayoun, M.
name: Bencivenni, G.
name: Benson, S.
name: Benton, J.
name: Berezhnoy, A.
name: Bernet, R.
name: Bettler, M. -O.
name: van Beuzekom, M.
name: Bien, A.
name: Bifani, S.
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name: Bjørnstad, P. M.
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name: Bondar, N.
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name: Borghi, S.
name: Borgia, A.
name: Bowcock, T. J. V.
name: Bowen, E.
name: Bozzi, C.
name: Brambach, T.
name: Brand, J. van den
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name: Brett, D.
name: Britsch, M.
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name: Brook, N. H.
name: Brown, H.
name: Burducea, I.
name: Bursche, A.
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name: Akiba, K. Carvalho
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name: Cauet, Ch.
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Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences
subject: FOS: Physical sciences

description: A search for direct CP violation in D0 -&gt; h- h+ (where h=K or pi) is presented using data corresponding to an integrated luminosity of 1.0 fb^-1 collected in 2011 by LHCb in pp collisions at a centre-of-mass energy of 7 TeV. The analysis uses D0 mesons produced in inclusive semileptonic b-hadron decays to the D0 mu X final state, where the charge of the accompanying muon is used to tag the flavour of the D0 meson. The difference in the CP-violating asymmetries between the two decay channels is measured to be Delta A_CP = A_CP(K-K+) - A_CP(pi-pi+) = (0.49 +- 0.30 (stat) +- 0.14 (syst)) % . This result does not confirm the evidence for direct CP violation in the charm sector reported in other analyses.
description: 16 pages, 5 figures. Matches the published version in PLB