Evidence for CP violation in time-integrated D0 -&gt; h-h+ decay rates
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.
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name: Alkhazov, G.
name: Cartelle, P. Alvarez
name: Alves, A. A.
name: Amato, S.
name: Amhis, Y.
name: Anderson, J.
name: Appleby, R. B.
name: Gutierrez, O. Aquines
name: Archilli, F.
name: Arrabito, L.
name: Artamonov, A.
name: Artuso, M.
name: Aslanides, E.
name: Auriemma, G.
name: Bachmann, S.
name: Back, J. J.
name: Bailey, D. S.
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name: Bates, A.
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name: Benayoun, M.
name: Bencivenni, G.
name: Benson, S.
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name: Bjørnstad, P. M.
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name: Bowcock, T. J. V.
name: Bozzi, C.
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name: Brand, J. van den
name: Bressieux, J.
name: Brett, D.
name: Britsch, M.
name: Britton, T.
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Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences
subject: FOS: Physical sciences

description: A search for time-integrated CP violation in D0 -&gt; h-h+ (h=K, pi) decays is presented using 0.62 fb^-1 of data collected by LHCb in 2011. The flavor of the charm meson is determined by the charge of the slow pion in the D*+ -&gt; D0 pi+ and D*- -&gt; D0bar pi- decay chains. The difference in CP asymmetry between D0 -&gt; K-K+ and D0 -&gt; pi-pi+, Delta ACP = ACP(K-K+) - ACP(pi-pi+), is measured to be [-0.82 \pm 0.21(stat.) \pm 0.11(syst.)]%. This differs from the hypothesis of CP conservation by 3.5 standard deviations.
description: 8 pages, 3 figures, 2 tables; v2 minor updates after journal review