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KTeV lepton flavor violation plots

Updated April 28, 2008.

[KL->pi0 mu e result], [KL->pi0 pi0 mu e result], [pi0->mu e result]

Plots in PRL 100, 131803 (2008)

• signal5.eps, signal5.pdf
  FIG.1. Signal Monte Carlo events for the decay K_L->pi⁰mu^+-e^-+ in the p_t² - M_{pi0 mu e} plane.' All cuts except the signal region cut have been made. The inner contour shows the signal region, and the outer contour indicates the control region.
  
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• mgg5.eps, mgg5.pdf
  FIG.2. M_gg distribution for the K_L->pi⁰mu^+-e^-+ search data, for events outside the signal and control regions, with all cuts in place except the M_gg cut. The arrows show the regions used for the sideband background estimate.
  
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• extrap3.eps, extrap3.pdf
  FIG.3. Surviving events in the p_t² - M_{pi0 mu e} plane for the K_L->pi⁰mu^+-e^-+ search data. The signal and control regions are shown as the inner and outer solid contours.
  
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• data4.eps, data4.pdf
  FIG.4. The log(L) distribution for the K_L->pi⁰pi⁰mu^+-e^-+ search data. The tree cuts sets as described in the text have been removed. A linear fit over the region -15 < log(L) < 5 was extrapolated into the signal (log(L) > 10) and control (5 < log(L) < 10) regions to estimate the background. The upper and lower dashed lines indicate the error bands used to assign a systematic error to the background estimate.
  
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• data4.eps, data4.pdf
  FIG.4. The log(L) distribution for the K_L->pi⁰pi⁰mu^+-e^-+ search data. The tree cuts sets as described in the text have been removed. A linear fit over the region -15 < log(L) < 5 was extrapolated into the signal (log(L) > 10) and control (5 < log(L) < 10) regions to estimate the background. The upper and lower dashed lines indicate the error bands used to assign a systematic error to the background estimate.
  
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