Measurement of CP Violation in the Phase Space of B [superscript ±] → K[superscript +]K[superscript -]π[superscript ±] and B[superscript ±] → π[superscript +]π[superscript -]π[superscript ±] Decays
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Aaij-2014-Measurement of C P v.pdf
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Author(s)
Williams, Michael
Date Issued
January 2014
Journal
Physical Review Letters
Publisher
American Physical Society
Citation
Aaij, R., B. Adeva, M. Adinolfi, C. Adrover, A. Affolder, Z. Ajaltouni, J. Albrecht, et al. “Measurement of CP Violation in the Phase Space of B [superscript ±] → K[superscript +]K[superscript -]π[superscript ±] and B[superscript ±] → π[superscript +]π[superscript -]π[superscript ±] Decays.” Physical Review Letters 112, no. 1 (January 2014). © 2014 CERN, for the LHCb Collaboration
Version
Final published version
Abstract
The charmless decays B[superscript ±] → K[superscript +]K[superscript −]π[superscript ±] and B[superscript ±] → π[superscript +]π[superscript −]π[superscript ±] are reconstructed in a data set of pp collisions with an integrated luminosity of 1.0 fb[superscript −1] and center-of-mass energy of 7 TeV, collected by LHCb in 2011. The inclusive charge asymmetries of these modes are measured to be A[subscript CP](B[superscript ±] → K[superscript +]K[superscript −]π[superscript ±]) = −0.141 ± 0.040 (stat) ± 0.018 (syst) ± 0.007(J/ψ K[superscript ±]) and A[subscript CP](B[superscript ±] → π[superscript +]π[superscript −]π[superscript ±]) = 0.117 ± 0.021 (stat) ±0.009 (syst) ±0.007(J/ψ K[superscript ±]), where the third uncertainty is due to the CP asymmetry of the B[superscript ±] → J/ψK[superscript ±] reference mode. In addition to the inclusive CP asymmetries, larger asymmetries are observed in localized regions of phase space.
MIT Department
Massachusetts Institute of Technology. Department of Physics
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DOI of Published Version
https://doi.org/10.1103/PhysRevLett.112.011801
