筑波大学・物理学系 三明
3
Multiplicity Distribution
•Multiplicity measurement by Drift & Pad chamber
•Consistent Results
Shape of distr. well
explained by Glauber Model Calculation
•Central collisions (Upper 6%) ;ｄｎ／ｄη＝５４０
<Nparticipant>~345 from Glauber
Central Pb+Pb at SPS（√ｓ＝17.2 GeV/A）ｄｎ／ｄη＝４００
４０％ increase !!