KTeV K_{L} > pi^{0}pi^{0}e^{+}e^{} plots
Updated September 6, 2002.
[KL>pi0 pi0 e e Results]
Search for the K_{L}>pi^{0}pi^{0}e^{+}e^{} Decay in the KTeV Experiment

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Fig.1. Monte Carlo simulation of backgrounds to K_{L}>pi^{0}pi^{0}e^{+}e^{} p_{t}^{2} vs M_{eegggg}. The total number of background events in the plot is equivalent to three times the actual integrated flux of the KTeV data.


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Fig.2. Events from the experimental data surviving all criteria for K_{L}>pi^{0}pi^{0}e^{+}e^{} decays vs p_{t}^{2} and M_{eegggg}.


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Fig.3. Comparison of K_{L}>pi^{0}pi^{0}e^{+}e^{} data (dots) and Monte Carlo (histogram) background distributions for a) M_{eegggg} and b) p_{t}^{2} distributions of events surviving cuts.


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Fig.4. The mass distribution of K_{L}>pi^{0}pi^{0}pi^{0}_{D} in which the photon from the pi0 > e^{+}e^{}gamma decays passes into one of beam holes in the CsI calorimeter and is reconstructed assuming that its trajectory passes through the center of the given beam hole. The solid dots are the data and the histogram is the Monte Carlo simulations of these events.

Send corrections to Taku Yamanaka