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Increase in the detection efficiency for the K$_{L}^{0}$ → π$^{0}$νν̃ decay in the E391 experiment

Stepanenko, Yu.Yu. (Gomel State U.) ; Kurilin, A.S. (Dubna, JINR) ; Podolsky, S.V. (Brookhaven)

Published in: Phys.Part.Nucl.Lett.
Year: 2017
Vol.: 14    Num./Issue: 1
Page No: 168-174
Pages: 7
Year: 2017-02-19 published

Abstract: One of the main aims of the Е391 experiment data analysis is to attain the calculated level of the setup sensitivity to the rare K$_{L}^{0}$ → π$^{0}$νν̃ decay. To this end, we have performed a repeated analysis of the collected data, which has resulted in a 65% increase in sensitivity when compared to the standard E391 data analysis. In this work we present the main concept of the data re-analysis that has allowed an increase in the E391 setup sensitivity and describe in general the methods used.

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DOI: 10.1134/S154747711606008X