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A novel non-perturbative gluon junction mechanism is introduced within the HIJING/B nuclear collision event generator to calculate baryon number transport and hyperon production in pA and AA collisions. This gluonic mechanism can account…

Nuclear Theory · Physics 2009-10-09 Stephen E. Vance , Miklos Gyulassy , Xin-Nian Wang

Nucleus-nucleus interaction is studied in the framework of the perturbative QCD with large number of colours and a fixed coupling constant. The pomeron tree diagrams are summed by an effective field theory. The classical field equations are…

High Energy Physics - Phenomenology · Physics 2009-11-10 M. A. Braun

The initial conditions in high energy nucleus-nucleus collisions are determined by the small momentum fraction part of the nuclear wavefunction. This is the regime of gluon saturation and the most direct way to experimentally study it would…

High Energy Physics - Phenomenology · Physics 2009-11-18 T. Lappi

We consider soft gluon emission corrections to the production of a top-antitop pair in association with a Higgs boson at hadron colliders. In particular, we present a soft-gluon resummation formula for this production process and gather all…

High Energy Physics - Phenomenology · Physics 2016-04-20 Alessandro Broggio , Andrea Ferroglia , Ben D. Pecjak , Adrian Signer , Li Lin Yang

We present a detailed numerical investigation of semi-inclusive forward di-hadron production in proton-nucleus collisions employing the Color Glass Condensate effective theory. We focus on the regime where di-hadrons are produced nearly…

High Energy Physics - Phenomenology · Physics 2025-12-29 Paul Caucal , Zhong-Bo Kang , Piotr Korcyl , Farid Salazar , Björn Schenke , Tomasz Stebel , Raju Venugopalan , Wenbin Zhao

In heavy-ion collisions the electromagnetic field exists before the hot nuclear matter emergence. Requiring the field continuity we compute it in the central rapidity region by taking into account the electromagnetic response of the Quark…

Nuclear Theory · Physics 2021-10-04 Evan Stewart , Kirill Tuchin

Using an advanced version of the hadron resonance gas model we have found several remarkable irregularities at chemical freeze-out. The most prominent of them are two sets of highly correlated quasi-plateaus in the collision energy…

We propose a novel formalism for simultaneously describing both, the hard and soft parton dynamics in ultrarelativistic collisions of nuclei. The emission of gluons from the initially coherent parton configurations of the colliding nuclei…

Nuclear Theory · Physics 2009-10-31 Steffen A. Bass , B. Mueller , W. Poeschl

The early stages of heavy ion collisions are dominated by high density systems of gluons that carry each a small fraction $x$ of the momenta of the colliding nucleons. A distinguishing feature of such systems is the phenomenon of…

High Energy Physics - Phenomenology · Physics 2017-02-22 Jean-Paul Blaizot

We present results from numerical Classical Yang Mills calculations of the initial stage Glasma field configurations in a relativistic heavy ion collision. We compute the initial gluon multiplicity from RHIC to LHC energies. The initial…

High Energy Physics - Phenomenology · Physics 2008-11-26 T. Lappi

A Monte Carlo simulator is presented to reproduce data of nucleus-nucleus interactions at high energies. The program is designed in a microscopic point of view, where the cascade approach is applied. Moreover, each nucleon from both the…

High Energy Physics - Phenomenology · Physics 2007-05-23 N. M. Hassan , N. El-Harby , M. T. Hussein

Employing scalar QCD we study the gluon emission of heavy quarks created by the interaction with light quarks considered as dynamical scattering centers. We develop approximation formulas for the high energy limit and study when the full…

High Energy Physics - Phenomenology · Physics 2014-05-13 Joerg Aichelin , Pol Bernard Gossiaux , Thierry Gousset

Starting from the effective lagrangian for QCD at high energy we calculate the lowest perturbative contributions to the potential of a relativistic nucleus and compare our results to those derived by Kovchegov (see Y.V. Kovchegov, Phys.…

High Energy Physics - Phenomenology · Physics 2016-08-25 Ph. Hagler , A. Schafer , R. Kirschner , L. Szymanowski

We derive a high energy factorization theorem for inclusive gluon production in A+A collisions. Our factorized formula resums i) all order leading logarithms (g^2 \ln(1/x_{1,2}))^n of the incoming partons momentum fractions, and ii) all…

High Energy Physics - Phenomenology · Physics 2009-01-09 Francois Gelis , Tuomas Lappi , Raju Venugopalan

We use a Glauber-like approach to describe very energetic nucleus-nucleus collisions as a sequence of binary nucleon-nucleon collisions. No free parameters are needed: all the information comes from simple parametrizations of…

Nuclear Theory · Physics 2008-11-26 Sangyong Jeon , Joseph Kapusta

We argue that multi-particle production in high energy hadron and nuclear collisions can be considered as proceeding through the production of gluons in the background classical field. In this approach we derive the gluon spectrum…

High Energy Physics - Phenomenology · Physics 2008-11-26 Dmitri Kharzeev , Eugene Levin , Kirill Tuchin

We review the methods and results obtained in an analysis of the experimental heavy ion collision research program at nuclear beam energy of 160-200A GeV. We study strange, and more generally, hadronic particle production experimental data.…

Nuclear Theory · Physics 2009-11-06 Jean Letessier , Johann Rafelski

Short thermalization times of less than 1 fm/c for quark and gluon matter have been suggested by recent experiments at the Relativistic Heavy Ion Collider (RHIC). It has been difficult to justify this rapid thermalization in first-principle…

Nuclear Theory · Physics 2009-11-13 Rainer J. Fries , Berndt Muller , Andreas Schafer

Inclusive Higgs measurements at the LHC have limited resolution on the gluon fusion loops, being unable to distinguish the long-distance contributions mediated by the top quark from possible short-distance new physics effects. Using an…

High Energy Physics - Phenomenology · Physics 2018-05-01 Aleksandr Azatov , Christophe Grojean , Ayan Paul , Ennio Salvioni

The maximum achievable temperature (energy density) and minimum kinetic energy required for the formation of a baryon-rich quark-gluon plasma formed at central rapidity in small impact parameter nuclear collisions is estimated. A possible…

Nuclear Theory · Physics 2014-11-18 Michael Danos , Johann Rafelski
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