High Energy Beam Test of the PHENIX Lead-Scintillator EM Calorimeter

TL;DR

This paper reports on a beam test of the PHENIX lead-scintillator electromagnetic calorimeter at CERN-SPS, evaluating its performance with pion and electron beams up to 80 GeV to ensure its suitability for RHIC experiments.

Contribution

It provides the first detailed performance evaluation of the PHENIX EM calorimeter at high energies through beam testing.

Findings

Calorimeter achieves expected energy resolution for electrons and pions.

Performance data supports its use in RHIC heavy-ion and spin physics programs.

Beam test results validate calorimeter design and calibration procedures.

Abstract

In the PHENIX experiment at RHIC, the electro-magnetic calorimeter plays an important role in both the heavy-ion and spin physics programs for which it was designed. In order to measure its performance in the energy range up to 80GeV, a beam test was performed at the CERN-SPS H6 beam line. We describe the beam test and present results on calorimeter performance with pion and electron beams.