Particle Identification with BELLE

TL;DR

The paper discusses the design, performance, and calibration of the BELLE particle identification system, which combines scintillator Time of Flight and silica Aerogel Counters, showing promising results for future physics experiments.

Contribution

It introduces a hybrid particle identification device for BELLE and evaluates its performance through beam tests and calibration efforts.

Findings

Satisfactory performance in beam tests

Promising Monte Carlo simulation results

Effective cosmic ray calibration ongoing

Abstract

The working principle and performance of the BELLE particle identification device (PID), based on a hybrid system consisting of an array of high precision scintillator Time of Flight and silica Aerogel Counters, is discussed. The performances achieved in the beam tests are satisfactory and Monte Carlo tests of meeting physics objectives of BELLE are promising. Prior to the real experiment which is expected to commence in spring 1999, the BELLE PID is taking cosmic ray data for calibration and fine tuning.