Measurements of transverse energy distributions in Au+Au collisions at sqrt [sNN ]=200 GeV

Transverse energy ( ET ) distributions have been measured for Au+Au collisions at sqrt[sNN ]=200 GeV by the STAR Collaboration at RHIC. ET is constructed from its hadronic and electromagnetic components, which have been 
Transverse energy ( ET ) distributions have been measured for Au+Au collisions at sqrt[sNN ]=200 GeV by the STAR Collaboration at RHIC. ET is constructed from its hadronic and electromagnetic components, which have been measured separately. ET 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 ET per charged particle agrees well with measurements at lower collision energy, indicating that the growth in ET for larger collision energy results from the growth in particle production. The electromagnetic fraction of the total ET is consistent with a final state dominated by mesons and independent of centrality.
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Metadaten
Author:J. Adams, Jens Berger, Thomas Dietel, Thorsten Kollegger, Jens Sören Lange, Reinhard Stock, et al., STAR Collaboration
URN:urn:nbn:de:hebis:30-19072
Document Type:Article
Language:English
Date of Publication (online):2005/10/14
Year of first Publication:2004
Publishing Institution:Univ.-Bibliothek Frankfurt am Main
Release Date:2005/10/14
Source:Phys. Rev. C 70, 054907 (2004), ©2004 The American Physical Society, http://link.aps.org/abstract/PRC/v70/e054907
HeBIS PPN:191619051
Institutes:Physik
Dewey Decimal Classification:530 Physik
PACS-Classification:25.75.Dw Particle and resonance production
Sammlungen:Universitätspublikationen
Licence (German):License Logo Veröffentlichungsvertrag für Publikationen

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