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Kaon and pion ratio probes of jet quenching in nuclear collisions

Kaon and pion ratio probes of jet quenching in nuclear collisions Non-Abelian energy loss in quark gluon plasmas is shown to lead to novel hadron ratio suppression patterns in ultrarelativistic nuclear collisions. Here we investigate pion and kaon production in pp and AA collisions in a perturbative QCD frame, suppression pattern and hadron ratios. The K−/K+ and K+/π+ ratios are found to be most sensitive to the opacity (density) of the plasma. Experimental data indicate that the fragmentation dominated pQCD region will be reached only at higher p T; in an intermediate p Tregion other particle production mechanisms dominate the K/π ratios. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Acta Physica Hungarica Series A, Heavy Ion Physics Springer Journals

Kaon and pion ratio probes of jet quenching in nuclear collisions

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Publisher
Springer Journals
Copyright
Copyright © 2006 by Akadémiai Kiadó
Subject
Physics; Nuclear Physics, Heavy Ions, Hadrons
ISSN
1219-7580
eISSN
1588-2675
DOI
10.1556/APH.27.2006.4.10
Publisher site
See Article on Publisher Site

Abstract

Non-Abelian energy loss in quark gluon plasmas is shown to lead to novel hadron ratio suppression patterns in ultrarelativistic nuclear collisions. Here we investigate pion and kaon production in pp and AA collisions in a perturbative QCD frame, suppression pattern and hadron ratios. The K−/K+ and K+/π+ ratios are found to be most sensitive to the opacity (density) of the plasma. Experimental data indicate that the fragmentation dominated pQCD region will be reached only at higher p T; in an intermediate p Tregion other particle production mechanisms dominate the K/π ratios.

Journal

Acta Physica Hungarica Series A, Heavy Ion PhysicsSpringer Journals

Published: Aug 29, 2009

References