Measurements of transverse energy distributions in Au + Au collisions at s(NN)**(1/2) = 200-GeV
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Abstract:
Transverse energy () distributions have been measured for Au+Au collisions at GeV by the STAR collaboration at RHIC. is constructed from its hadronic and electromagnetic components, which have been measured separately. production for the most central collisions is well described by several theoretical models whose common feature is large energy density achieved early in the fireball evolution. The magnitude and centrality dependence of per charged particle agrees well with measurements at lower collision energy, indicating that the growth in for larger collision energy results from the growth in particle production. The electromagnetic fraction of the total is consistent with a final state dominated by mesons and independent of centrality.- nucleus nucleus: colliding beams
- scattering: heavy ion
- gold
- hadron: multiple production
- charged particle: multiplicity
- energy spectrum: transverse energy
- transverse energy: hadronic
- transverse energy: electromagnetic
- impact parameter: dependence
- STAR
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