Introduction - Requirements for PHENIX EMCal-
Wide dynamic range
- to perform both H.I physics and spin physics
- Energy range 1: a few hundred MeV - 20GeV
for both H.I. physics and spin physics in ?s = 200AGeV
- Thermal ? , ?0 - a few hundred MeV - a few GeV
- J/??e?e? - < 10 GeV
- Direct ? - a few GeV - 20 GeV
- Energy range 2: 10GeV - 80GeV
for spin physics ?s = 500GeV
- Direct ? - a few GeV - 40 GeV
- W?e? , Z?e?e? - 10 GeV - 60 GeV