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CERN Heavy Ion Forum
Presentations by Mark I. Gorenstein and Jan Rak
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Europe/Zurich
40-SS-C01 (CERN)
40-SS-C01
CERN
Description
Critical line in Deconfinement Phase Transition Phase in the System of Quark-Gluon Bags
by Mark I. Gorenstein (Bogolyubov Institute for Theoretical Physics, Kiev, Ukraine and Frankfurt Institute for Advanced Studies, Frankfurt, Germany)
Phase diagram of strongly interacting matter is discussed within the exactly solvable statistical model of the quark-gluon bags. The model predicts two phases of matter: the hadron gas at a low temperature $T$ and baryonic chemical potential $\mu_B$, and the quark-gluon gas at a high $T$ and/or $\mu_B$. The nature of the phase transition depends on a form of the bag mass-volume spectrum (its pre-exponential factor), which is expected to change with the $\mu_B/T$ ratio. It is therefore likely that the line of the 1$^{st}$ order transition at a high $\mu_B/T$ ratio is followed by the line of the 2$^{nd}$ order phase transition at an intermediate $\mu_B/T$, and then by the lines of 'higher order transitions' at a low $\mu_B/T$.
Jet fragmentation and dijet decorrelation in p+p and Au+Au collisions at roots=200 GeV
by Jan Rak
Analysis of heavy ion collision data collected at RHIC brought a vast amount of impressive results. Theoretical interpretation, based on hydrodynamics and pQCD, seems to indicate the presence of a strongly coupled liquid-like state of partonic matter. However, many open questions and puzzles prevent us from declaring unambiguously the picture of the collision dynamics.
It is obvious that, for deeper understanding of observed phenomena, various multiparticle correlation analyses have to be done. In this talk the properties of jets produced in p+p and Au+Au collisions at RHIC are studied using a method of two particle correlations. The trigger particle is a leading particle from a large transverse momentum jet while the associated particle comes from either the same jet or the away-side jet. The main focus is given to the measurement of the fragmentation function and partonic transverse momentum $k_{T}$ and their modifications in nuclear reactions.
Organiser(s): Carlos Salgado
Please note the change of place: bldg. 40-SS-C01
by Mark I. Gorenstein (Bogolyubov Institute for Theoretical Physics, Kiev, Ukraine and Frankfurt Institute for Advanced Studies, Frankfurt, Germany)
Phase diagram of strongly interacting matter is discussed within the exactly solvable statistical model of the quark-gluon bags. The model predicts two phases of matter: the hadron gas at a low temperature $T$ and baryonic chemical potential $\mu_B$, and the quark-gluon gas at a high $T$ and/or $\mu_B$. The nature of the phase transition depends on a form of the bag mass-volume spectrum (its pre-exponential factor), which is expected to change with the $\mu_B/T$ ratio. It is therefore likely that the line of the 1$^{st}$ order transition at a high $\mu_B/T$ ratio is followed by the line of the 2$^{nd}$ order phase transition at an intermediate $\mu_B/T$, and then by the lines of 'higher order transitions' at a low $\mu_B/T$.
Jet fragmentation and dijet decorrelation in p+p and Au+Au collisions at roots=200 GeV
by Jan Rak
Analysis of heavy ion collision data collected at RHIC brought a vast amount of impressive results. Theoretical interpretation, based on hydrodynamics and pQCD, seems to indicate the presence of a strongly coupled liquid-like state of partonic matter. However, many open questions and puzzles prevent us from declaring unambiguously the picture of the collision dynamics.
It is obvious that, for deeper understanding of observed phenomena, various multiparticle correlation analyses have to be done. In this talk the properties of jets produced in p+p and Au+Au collisions at RHIC are studied using a method of two particle correlations. The trigger particle is a leading particle from a large transverse momentum jet while the associated particle comes from either the same jet or the away-side jet. The main focus is given to the measurement of the fragmentation function and partonic transverse momentum $k_{T}$ and their modifications in nuclear reactions.
Organiser(s): Carlos Salgado
Please note the change of place: bldg. 40-SS-C01