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Measurement of CP asymmetries in D ± → η ′ π ± and
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© 2017 The Author A search for CP violation in D±→η′π±and Ds±→η′π±decays is performed using proton–proton collision data, corresponding to an integrated luminosity of 3 fb−1, recorded by the LHCb experiment at centre-of-mass energies of 7 and 8 TeV. The measured CP-violating charge asymmetries are ACP(D±→η′π±)=(−0.61±0.72±0.53±0.12)% and ACP(Ds±→η′π±)=(−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.
Journal
Physics Letters B
Publisher
Elsevier BV
Citation
Aaij, R., B. Adeva, M. Adinolfi, Z. Ajaltouni, S. Akar, J. Albrecht, F. Alessio, et al. “Measurement of CP Asymmetries in D ± → η ′ π ± andDs±→η′π±decays.” Physics Letters B 771 (August 2017): 21–30. doi:10.1016/j.physletb.2017.05.013.
Version: Final published version
ISSN
03702693
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