Separation of e+e- → e+e- and e+e- → π+π- events based on the difference in the energy deposition profiles in SND detector calorimeter.

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

The technique of discrimination of the e+e- → e+e- and e+e- → π+π- events in energy range 0.5 < s < 1 GeV based on the difference in the energy deposition in calorimeter of SND detector was developed by applying machine learning method. Identification efficiency for e+e- → e+e- and e+e- → π+π- events is estimated to be in the range from 99.3 to 99.8%. Contribution of the identification efficiencies errors to the total error of e+e- → π+π- cross section is less than 0.2% for the most energy points.

Original languageEnglish
Article number06035
Number of pages6
JournalJournal of Instrumentation
Volume12
Issue number6
DOIs
Publication statusPublished - 26 Jun 2017

Keywords

  • Calorimeters
  • Particle identification methods
  • SPHERICAL NEUTRAL DETECTOR

Fingerprint Dive into the research topics of 'Separation of e<sup>+</sup>e<sup>-</sup> → e<sup>+</sup>e<sup>-</sup> and e<sup>+</sup>e<sup>-</sup> → π<sup>+</sup>π<sup>-</sup> events based on the difference in the energy deposition profiles in SND detector calorimeter.'. Together they form a unique fingerprint.

Cite this