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KTeV pi⁰->e⁺e^- Branching Fractions plots

Updated January 22, 2007

[pi0->ee BR Result]

Plots in Phys. Rev. D 75, 012004 (2007)

"Measurement of the Rare Decay pi⁰->e⁺e^-"

• spectrometer.eps, spectrometer.pdf
  Fig.1 The KTeV spectrometer in E799-II configuration.
  
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• x-dist.eps, x-dist.pdf
  Fig.2 Dalitz x_D = (m_e+e-/m_pi0) for fully-reconstructed Dalitz decay candidates after normalization mode analysis cuts. Monte Carlo prediction using the world average form factor slope parameter is overlaid.
  
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• mee-figure-norm.eps, mee-figure-norm.pdf
  Fig.3 Positron-electron invariant mass for pi⁰->e⁺e^- signal candidates passing all other cuts. The points with error bars are data; the solid histogram is background MC.
  
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• sideband-ratio-2.eps, sideband-ratio-2.pdf
  Fig. 4 Ratio of data to MC distribution of m_e+e- in the sideband region below the signal peak, where the MC was normalized to the number of fully-reconstructed Dalitz decays. The dotted line indicates the ratio over the entire region.
  
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