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Related papers: The glasma initial state at the LHC

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We calculate the classical gluon field created at early times in collisions of large nuclei at high energies. We find that the field is dominated by the longitudinal chromoelectric and chromomagnetic components. We estimate the initial…

Nuclear Theory · Physics 2007-05-23 R. J. Fries , J. I. Kapusta , Y. Li

At high energy, the gluon distribution in nuclei reaches large densities and eventually saturates due to recombinations, that play an important role in heavy ion collisions at RHIC and the LHC. The Color Glass Condensate provides a…

High Energy Physics - Phenomenology · Physics 2015-05-30 Francois Gelis

We show that a special choice of light-cone gauge can greatly simplify the calculation of the classical color field created in the initial stages of nucleus-nucleus collisions. Within this gauge, we can in particular construct explicitly…

High Energy Physics - Phenomenology · Physics 2009-02-02 Jean-Paul Blaizot , Yacine Mehtar-Tani

We compute transverse momentum and momentum integrated multiplicity distributions consistently in the IP-Glasma model for proton-proton and proton-lead collisions at the LHC, in deuteron-gold collisions at RHIC, and in heavy ion collisions…

High Energy Physics - Phenomenology · Physics 2015-02-06 Bjoern Schenke , Prithwish Tribedy , Raju Venugopalan

This is a review of numerical applications of classical gluodynamics to heavy ion collisions. We recall some results from calculations of gluon production, discuss their implications for heavy ion phenomenology, and outline a strategy to…

High Energy Physics - Phenomenology · Physics 2017-08-23 T. Lappi

In the pre-thermal equilibrium stage of relativistic heavy-ion collisions, a strong quasi-classical transverse gluon field emerges at about $\tau_0 \simeq 0.1 \, \rm fm/c$ and evolves together with their longitudinal counterparts according…

We investigate how thermalization of gluons depends on the initial conditions assumed in ultrarelativistic heavy ion collisions at RHIC. The study is based on simulations employing the pQCD inspired parton cascade solving the Boltzmann…

High Energy Physics - Phenomenology · Physics 2009-11-11 Zhe Xu , Carsten Greiner

Heavy quarks, which are produced at the earliest stage of relativistic heavy-ion collisions, probe the entire history of the quark-gluon plasma that is created in the collision. Initially the plasma is populated with chromodynamic fields…

Nuclear Theory · Physics 2020-06-24 Margaret E. Carrington , Alina Czajka , Stanislaw Mrowczynski

The relationship between RHIC and HERA data is explored using the idea of saturation (color glass condensate) as a unifying framework for interpretation. A description of the early stages of a heavy ion collision is given with the RHIC…

High Energy Physics - Phenomenology · Physics 2011-01-25 Alfred H. Mueller

The initial stage of a heavy ion collision is dominated by nonperturbatively strong chromoelectric and -magnetic fields. The spatial Wilson loop provides a gauge invariant observable to probe the dynamics of the longitudinal chromomagnetic…

High Energy Physics - Phenomenology · Physics 2014-08-20 T. Lappi , A. Dumitru , Y. Nara

The event-by-event multiplicity distribution, the energy densities and energy density weighted eccentricity moments epsilon_n (up to n=6) at early times in heavy-ion collisions at both RHIC (root-s=200 GeV) and LHC (root-s=2.76 TeV) are…

High Energy Physics - Phenomenology · Physics 2012-10-12 Bjoern Schenke , Prithwish Tribedy , Raju Venugopalan

The early time dynamics of heavy ion collisions can be described by classical fields in an approximation of Quantum ChromoDynamics (QCD) called Color Glass Condensate (CGC). Monte-Carlo sampling of the color charge for the incoming nuclei…

Nuclear Theory · Physics 2017-05-24 Steven Rose , Rainer J. Fries

Color Glass Condensate (CGC) provides a classical description of dense gluon matter at high energies. Using the McLerran-Venugopalan (MV) model we calculate the initial energy density \epsilon(\tau) in the early stage of the relativistic…

High Energy Physics - Phenomenology · Physics 2014-11-18 Kenji Fukushima

At the earliest stage of ultrarelativistic heavy-ion collisions the produced matter is a highly populated system of gluons called glasma which can be approximately described in terms of classical chromodynamic fields. Although the system's…

Nuclear Theory · Physics 2024-11-13 Margaret E. Carrington , Stanislaw Mrowczynski , Jean-Yves Ollitrault

This paper is a slightly modified version of the introductory part of a doctoral dissertation also containing the articles hep-ph/0303076, hep-ph/0409328 and hep-ph/0409058. The paper focuses on the calculation of particle production in a…

High Energy Physics - Phenomenology · Physics 2007-05-23 T. Lappi

We report on efforts to construct an event generator that calculates the classical gluon field generated at early times in high energy nuclear collisions. Existing approaches utilize numerical solutions of the Yang-Mills equations after the…

Nuclear Theory · Physics 2017-06-06 Rainer J. Fries , Steven Rose

The JIMWLK equation with a "daughter dipole" running coupling is solved numerically starting from an initial condition given by the McLerran-Venugopalan model. The resulting Wilson line configurations are then used to compute the spectrum…

High Energy Physics - Phenomenology · Physics 2011-09-09 T. Lappi

The earliest phase of an ultrarelativistic heavy ion collision can be described as a highly populated system of gluons called glasma. The system's dynamics is governed by the classical Yang-Mills equation. Solutions can be found at early…

We review our progress on 3+1D Glasma simulations to describe the earliest stages of heavy-ion collisions. In our simulations we include nuclei with finite longitudinal extent and describe the collision process as well as the evolution of…

High Energy Physics - Phenomenology · Physics 2020-10-05 Andreas Ipp , David I. Müller

This talk will discuss how to compute initial quantites in heavy ion collisions at RHIC (200 AGeV) and at LHC (5500 AGeV) using perturbative QCD (pQCD) by including the next-to-leading order (NLO) corrections and a dynamical determination…

High Energy Physics - Phenomenology · Physics 2014-11-17 K. Tuominen