Separation of $e^{+}{e}^{-}\to e^{+}{e}^{-}$ and $e^{+}{e}^{-}\to {\pi }^{+}{\pi }^{-}$ events using SND detector calorimeter

Abstract

The technique of discrimination of the $e^{+}{e}^{-}\to e^{+}{e}^{-}$ and $e^{+}{e}^{-}\to {\pi }^{+}{\pi }^{-}$ events in energy range $0.5<\sqrt{s}<1$ GeV by energy deposition in the calorimeter of SND detector was developed by applying machine learning method. Identification efficiency for $e^{+}{e}^{-}\to e^{+}{e}^{-}$ and $e^{+}{e}^{-}\to {\pi }^{+}{\pi }^{-}$ events in the range from 99.3 to 99.8 % has been achived.

References in corpus (7)

• TMVA - Toolkit for Multivariate Data Analysis
• High-statistics measurement of the pion form factor in the rho-meson energy range with the CMD-2 detector
• Measurement of e+e- -> pi+pi- cross section with CMD-2 around rho-meson
• Spherical Neutral Detector for VEPP-2M collider
• Study of the process $e^{+}{e}^{-}\to {\pi }^{+}{\pi }^{-}$ in the energy region 400<\sqrt[]{s}<1000 MeV
• A system of beam energy measurement based on the Compton backscattered laser photons for the VEPP-2000 electron-positron collider
• The system for delivery of IR laser radiaton into high vacuum

Cited by in corpus (1)

• Measurement of the $e^{+}{e}^{-}\to {\pi }^{+}{\pi }^{-}$ process cross section with the SND detector at the VEPP-2000 collider in the energy region $0.525<\sqrt{s}<0.883$ GeV