Measurement of CP asymmetries in D± → η0π± and Ds± → η0π± decays

The Lhcb Collaboration

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A search for CP violation in D± → η0π± and Ds± → η0π± decays is performed using proton-proton collision data, corresponding to an integrated luminosity of 3 fb1, recorded by the LHCb experiment at centre-of-mass energies of 7 and 8 TeV. The measured CP-violating charge asymmetries are ACP(D± → η0π±) = (−0.61 ± 0.72 ± 0.53 ± 0.12)% and ACP(Ds± → η0π±) = (−0.82 ± 0.36 ± 0.22 ± 0.27)%, where the first uncertainties are statistical, the second systematic, and the third are the uncertainties on the ACP(D± → KS0π±) and ACP(Ds± → φπ±) measurements used for calibration. The results represent the most precise measurements of these asymmetries to date.

Original languageEnglish (US)
JournalUnknown Journal
StatePublished - Jan 7 2017

ASJC Scopus subject areas

  • General

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