Search for CP violation using T-odd correlations in D[superscript 0] → K[superscript +]K[superscript −]π[superscript +]π[superscript −] decays
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Aaij-2014-Search for CP violat.pdf
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Author(s)
Counts, Ian Thomas Hunt
Ilten, Philip J
Williams, Michael
Date Issued
October 2014
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
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.
MIT Department
Massachusetts Institute of Technology. Department of Physics
Massachusetts Institute of Technology. Laboratory for Nuclear Science
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DOI of Published Version
https://doi.org/10.1007/JHEP10(2014)005
