Cronin effect and high p⊥ suppression from Color Glass Condensate

2005 ◽  
Vol 20 (19) ◽  
pp. 4393-4398
Author(s):  
KAZUNORI ITAKURA
Keyword(s):  
Color Glass ◽  
Color Glass Condensate ◽  
Nuclear Modification Factor ◽  
Nuclear Modification ◽  
Cronin Effect ◽  
Modification Factor ◽  
Gluon Distributions

We present an analytical understanding of properties of the ratio between gluon distributions of a nucleus and a proton based on the framework of the Color Glass Condensate. This ratio is closely related to the nuclear modification factor in the deuteron- Au collisions measured by Brahms experiment at RHIC.

scholarly journals FERMI MOTION AND NUCLEAR MODIFICATION FACTOR

2004 ◽  
Vol 19 (22) ◽  
pp. 1669-1679 ◽  
Author(s):  
A. SZCZUREK ◽  
A. BUDZANOWSKI
Keyword(s):  
Quark Gluon Plasma ◽  
Gluon Plasma ◽  
Fermi Motion ◽  
Nuclear Modification Factor ◽  
Nuclear Modification ◽  
Cronin Effect ◽  
Different Types ◽  
Low Energies ◽  
Modification Factor ◽  
The One

It has been argued recently that the so-called nuclear modification factor (RAA) is an observable useful for identifying the quark–gluon plasma. We discuss the effect of Fermi motion in nuclei on RAA at CERN SPS and BNL RHIC energies. Contrary to the simple intuition, rather large effects are found for CERN SPS. The Fermi motion in nuclei contributes significantly to the Cronin effect. The effect found is qualitatively similar to the one observed experimentally at CERN energies and similar to the one obtained in the models of multiple scattering of initial partons. We predict different size of the effect for different types of hadrons, especially at low energies.

scholarly journals Impact of scale, nuclear PDF and temperature variations on the interpretation of medium-modified jet production data from the LHC

2021 ◽  
Vol 2021 (4) ◽  
Author(s):  
A. Andronic ◽  
J. Honermann ◽  
M. Klasen ◽  
C. Klein-Bösing ◽  
J. Salomon
Keyword(s):  
Distribution Functions ◽  
Production Data ◽  
Crossover Temperature ◽  
Parton Distribution Functions ◽  
Temperature Variations ◽  
Nuclear Modification Factor ◽  
Nuclear Modification ◽  
Modification Factor ◽  
The Impact ◽  
Jet Structure

Abstract In this paper we present a study of in-medium jet modifications performed with JEWEL and PYTHIA 6.4, focusing on the uncertainties related to variations of the perturbative scales and nuclear parton distribution functions (PDFs) and on the impact of the initial and crossover temperature variations of the medium. The simulations are compared to LHC data for the jet spectrum and the nuclear modification factor. We assess the interplay between the choice of nuclear PDFs and different medium parameters and study the impact of nuclear PDFs and the medium on the jet structure via the Lund plane.

CENTRALITY DEPENDENCE OF NUCLEAR MODIFICATION FACTOR IN Au+Au COLLISIONS AT $\sqrt{s_{NN}}=200~{\rm GeV}$

2007 ◽  
Vol 22 (19) ◽  
pp. 1381-1389 ◽  
Author(s):  
W. C. XIANG ◽  
D. C. ZHOU
Keyword(s):  
Model Calculation ◽  
Centrality Dependence ◽  
Nuclear Modification Factor ◽  
Surface Emission ◽  
Nuclear Modification ◽  
Boltzmann Function ◽  
Modification Factor ◽  
Phenix Data

Centrality dependence of nuclear modification factor at high pT above 4 GeV /c is studied in nucleus–nucleus collisions at [Formula: see text]. We find that the centrality dependence of the nuclear modification factor can be factorized as a Boltzmann function F(b). Comparing our model calculation with PHENIX data, we further confirm that the high pT spectrum of particles is dominated by surface emission.

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