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 language | English |
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Article number | 06035 |
Number of pages | 6 |
Journal | Journal of Instrumentation |
Volume | 12 |
Issue number | 6 |
DOIs | |
Publication status | Published - 26 Jun 2017 |
Keywords
- Calorimeters
- Particle identification methods
- SPHERICAL NEUTRAL DETECTOR