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Search for CP violation using T-odd correlations in D[superscript 0] → K[superscript +]K[superscript −]π[superscript +]π[superscript −] decays

Author(s)
Counts, Ian Thomas Hunt; Ilten, Philip J; Williams, Michael
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Abstract
A search for CP violation using T-odd correlations is performed using the four-body D[superscript 0] → K[superscript +]K[superscript −]π[superscript +]π[superscript −] decay, selected from semileptonic B decays. The data sample corresponds to integrated luminosities of 1.0 fb[superscript −1] and 2.0 fb[superscript −1] recorded at the centre-of-mass energies of 7 TeV and 8 TeV, respectively. The CP-violating asymmetry a[T-odd over CP] 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[superscript 0] decay time, are also presented. No significant deviation from the CP conservation hypothesis is found.
Date issued
2014-10
URI
http://hdl.handle.net/1721.1/92539
Department
Massachusetts Institute of Technology. Department of Physics; Massachusetts Institute of Technology. Laboratory for Nuclear Science
Journal
Journal of High Energy Physics
Publisher
Springer-Verlag
Citation
Aaij, R., B. Adeva, M. Adinolfi, A. Affolder, Z. Ajaltouni, S. Akar, J. Albrecht, et al. “Search for CP Violation Using T-Odd Correlations in D[superscript 0] → K[superscript +]K[superscript −]π[superscript +]π[superscript −] Decays.” J. High Energ. Phys. 2014, no. 10 (October 2014).
Version: Final published version
ISSN
1029-8479
1126-6708

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