1,677 research outputs found
EPS09 - Nuclear PDFs and Their Uncertainties at NLO
In this talk, we present our recent next-to-leading order (NLO) nuclear
parton distribution functions (nPDFs), which we call EPS09. As an extension to
earlier NLO analyses, we supplement the deep inelastic scattering and Drell-Yan
dilepton data by inclusive midrapidity pion measurements from RHIC in order to
reduce the otherwize large freedom in the nuclear gluon densities. Our
Hessian-type error analysis leading to a collection of nPDF error sets, is the
first of its kind among the nPDF analyses.Comment: 4 pages, 4 figures - To appear in the conference proceedings for
Quark Matter 2009, March 30 - April 4, Knoxville, Tennesse
High Energy Nuclear Collisions
Highlights of the results from ultrarelativistic heavy ion collisions at
CERN-SPS are reviewed. In particular, I discuss how the experimental results
indicate that a collective strongly interacting system has been produced, and
what are the implications towards the Quark Gluon Plasma. The physical ideas
behind measuring certain observables are introduced. The future program of high
energy nuclear collisions at BNL-RHIC and CERN-LHC/ALICE is also briefly
discussed.Comment: Plenary talk at the International Europhysics Conference on High
Energy Physics, EPS-HEP99, Tampere, Finland, July 1999; 21 page
Minijets in ultrarelativistic heavy ion collisions at future colliders
The role of minijet production as initial conditions for QGP production at
in nuclear collisions at the LHC and RHIC energies is
discussed.Comment: 15 pages, including 2 figures, an invited article to Comments on
Nuclear and Particle Physic
On predictions of the first results from RHIC
In this talk, I will discuss the predictions of the first results from RHIC:
the charged particle multiplicity , its centrality
dependence and the elliptic flow .Comment: A plenary review talk at Quark Matter 2001, Stony Brook, USA, January
2001, 10 page
Initial state of the QGP from perturbative QCD + saturation
The production of the initial state of the QGP in very high-energy
collisions is discussed within the framework of perturbative QCD and
saturation. The next-to-leading order computation of the transverse energy of
minijets is reviewed. Saturation of parton production, conjectured to occur at
a dynamically determinable perturbative scale, leads to estimates of the
initial densities. The final state multiplicities are predicted by assuming an
isentropic hydrodynamical further evolution. Comparison with RHIC data is
shown.Comment: 10 pages, 8 figures. Invited talk at the International Conference on
Statistical QCD, August 2001, Bielefel
Pre-thermalization dynamics: initial conditions for QGP at the LHC and RHIC from perturbative QCD
I discuss how the initial conditions for QGP-production in ultrarelativistic
heavy ion collisions at the LHC and RHIC can be computed from perturbative QCD.Comment: 11 pages, including 2 figures. A lecture at the International School
on the Physics of Quark Gluon Plasma, June 3-6, 1997, Hiroshim
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