Measurement of CP asymmetries in D ± → η ′ π ± and
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Author(s)
The LHCb Collaboration
Boettcher, Thomas Julian
Ilten, Philip J
Williams, M.
Date Issued
May 2017
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
Abstract
© 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.
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/10.1016/J.PHYSLETB.2017.05.013
