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Minijet deformation and charge-independent angular correlations on momentum subspace (η,) in Au-Au collisions at (sNN)=130 GeV
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SYSNO ASEP 0096948 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Ostatní články Title Minijet deformation and charge-independent angular correlations on momentum subspace (η,) in Au-Au collisions at (sNN)=130 GeV Title Deformace minijetu a nábojově závislé úhlové korelace v podprostoru (eta, phi) ve srážkách Au+Au při (sNN)=130 GeV Author(s) Adams, J. (US)
Bielčík, J. (CZ)
Bielčíková, J. (CZ)
Bysterský, Michal (UJF-V)
Chaloupka, Petr (UJF-V) RIDSource Title Physical Review. C - ISSN 0556-2813
Roč. 73, č. 6 (2006), 064907-064907Number of pages 1 s. Language eng - English Country US - United States Keywords GeV Subject RIV BF - Elementary Particles and High Energy Physics R&D Projects GA202/04/0793 GA ČR - Czech Science Foundation (CSF) CEZ AV0Z10480505 - UJF-V (2005-2011) Annotation First measurements of charge-independent correlations on angular difference variables 1-2 (pseudorapidity) and 1-2 (azimuth) are presented for primary charged hadrons with transverse momentum 0.15 pt 2 GeV/c and $|| 1.3 from Au-Au collisions at (sNN)=130GeV. Strong charge-independent angular correlations are observed associated with jet-like structures and elliptic flow. The width of the jet-like peak on 1-2 increases by a factor 2.3 from peripheral to central collisions, suggesting strong coupling of semi-hard scattered partons to a longitudinally-expanding medium. New methods of jet analysis introduced here provide evidence for nonperturbative QCD medium effects in heavy ion collisions. Workplace Nuclear Physics Institute Contact Markéta Sommerová, sommerova@ujf.cas.cz, Tel.: 266 173 228 Year of Publishing 2008
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