Search for CP violation using T-odd correlations in D-0 -> K+K-pi(+)pi(-) decays

R. Aaij, L.C. Garcia, K. De Bruyn, C. Farinelli, V.A.M. Heijne, T.J. Ketel, R. Koopman, D.M. Lambert, R.W. Lambert, J. van Leerdam, Y.J. Li, M.H.M. Merk, S. Oggero, H.G. Raven, M. Schiller, V. Syropoulos, S. Tolk, M. Garcia

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A search for CP violation using T-odd correlations is performed using the four-body D 0 → K + K −π+π− decay, selected from semileptonic B decays. The data sample corresponds to integrated luminosities of 1.0 fb−1 and 2.0 fb−1 recorded at the centre-of-mass energies of 7 TeV and 8 TeV, respectively. The CP -violating asymmetry a CP T ‐ odd is measured to be (0.18 ± 0.29 (stat) ± 0.04 (syst))%. Searches for CP violation in different regions of phase space of the four-body decay, and as a function of the D 0 decay time, are also presented. No significant deviation from the CP conservation hypothesis is found.
Original languageEnglish
Article number005
Pages (from-to)1-21
Number of pages21
JournalJournal of High Energy Physics
Issue number10
Publication statusPublished - 1 Oct 2014

Bibliographical note

PT: J; NR: 30; TC: 0; J9: J HIGH ENERGY PHYS; PG: 21; GA: AQ8EJ; UT: WOS:000343056200001


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