Search for CP violation using T-odd correlations in D0→K+K−π+π− decays

The LHCb Collaboration, Matthew P Coombes, Sophie E Richards, Daniel Saunders, Nicola A Skidmore, Daniel Souza Covacich, Jaap J Velthuis, David K Voong

Research output: Contribution to journalArticle (Academic Journal)peer-review

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Abstract

A search for CP violation using T-odd correlations is performed using the four-body D0K+Kπ+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 aCPT ‐ 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 D0 decay time, are also presented. No significant deviation from the CP conservation hypothesis is found
Original languageEnglish
Article number5
Number of pages21
JournalJournal of High Energy Physics
Volume1410
Issue number5
Early online date1 Oct 2014
DOIs
Publication statusPublished - Oct 2014

Keywords

  • CP violation
  • Charm physics
  • Hadron-Hadron Scattering
  • Flavor physics

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