Hard physics in STAR

The hot and dense matter created in high-energy nuclear collisions is believed to undergo a transition into a deconfined phase where partonic degrees of freedom determine the dynamics of the medium. High-p ? partons, tha
The hot and dense matter created in high-energy nuclear collisions is believed to undergo a transition into a deconfined phase where partonic degrees of freedom determine the dynamics of the medium. High-p ? partons, that are produced in the initial collisions between nucleons of the incoming nuclei, lose energy as they propagate through the medium. This effect, called jetquenching, is observed in high-p ? particle spectra, in azimuthal correlations with the reaction plane (elliptic flow) and jet-like two-particle correlations. STAR consists of tracking detectors and electromagnetic calorimetry with large and azimuthally symmetric acceptance and is exceptionallywell suited for single particle detection and correlation studies at high p ? . In the last five years, it has collected a large dataset including Au+Au and Cu+Cu collisions at different energies and reference data from p+p and d+Au collisions. We present particle spectra and two-particle correlations at high-p ? , and relate these measurements to the properties of the medium.
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Metadaten
Author:Thomas Dietel
URN:urn:nbn:de:hebis:30-45305
Document Type:Article
Language:English
Date of Publication (online):2007/06/14
Year of first Publication:2005
Publishing Institution:Univ.-Bibliothek Frankfurt am Main
Release Date:2007/06/14
Note:
Copyright owned by the author(s) under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike Licence.
Source:Proceedings of Science (HEP2005)136. - International Europhysics Conference on High Energy Physics, July 21st - 27th 2005, Lisboa, Portugal
HeBIS PPN:188843612
Institutes:Physik
Dewey Decimal Classification:530 Physik
Sammlungen:Universitätspublikationen
Licence (German):License Logo Veröffentlichungsvertrag für Publikationen

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