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Related papers: The 3+1D initialization and evolution of the Glasm…

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We present a novel formulation of the IP-Glasma initial state model in 3+1D in which the 2+1D boost invariant IP-Glasma is generalized through JIMWLK rapidity evolution of the pre-collision Wilson lines \cite{Schenke:2016ksl}. In order to…

Nuclear Theory · Physics 2019-02-20 Scott McDonald , Sangyong Jeon , Charles Gale

We present a formulation of the initial state of heavy ion collisions that generalizes the 2+1D boost invariant IP-Glasma \cite{Schenke:2012wb} to 3+1D through JIMWLK rapidity evolution of the pre-collision Wilson lines. The rapidity…

Nuclear Theory · Physics 2021-02-03 Scott McDonald , Sangyong Jeon , Charles Gale

We extend the impact parameter dependent Glasma model (IP-Glasma) to three dimensions using explicit small x evolution of the two incoming nuclear gluon distributions. We compute rapidity distributions of produced gluons and the early time…

High Energy Physics - Phenomenology · Physics 2016-10-20 Bjoern Schenke , Soeren Schlichting

The Glasma is a semiclassical nonequilibrium state describing the earliest stage in relativistic heavy-ion collisions predicted by the Color Glass Condensate effective theory. It is characterized by strong color fields, which are sourced by…

High Energy Physics - Phenomenology · Physics 2025-01-28 Markus Leuthner

We discuss differences between the IP-Glasma model and typical wounded-nucleon model like initial conditions. We point out that the IP-Glasma initial state is more compact in the transverse plane and produces a significant initial flow,…

Nuclear Theory · Physics 2019-02-20 Björn Schenke , Chun Shen , Prithwish Tribedy

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

We extend the well-studied midrapidity TRENTo initial-conditions model to three dimensions, thus facilitating (3+1)D modeling and analysis of ultrarelativistic heavy-ion collisions at RHIC and LHC energies. TRENTo-3D is a fast, parametric…

Nuclear Theory · Physics 2023-06-16 Derek Soeder , Weiyao Ke , J. -F. Paquet , Steffen A. Bass

We present our progress on simulating the Glasma in the early stages of heavy ion collisions in a non-boost-invariant setting. Our approach allows us to describe colliding nuclei with finite longitudinal width by extending the…

High Energy Physics - Phenomenology · Physics 2022-09-21 Andreas Ipp , David Müller

We extend the weak field approximation for the Glasma beyond the boost-invariant approximation, which allows us to compute rapidity-dependent observables in the early stages of heavy-ion collisions. We show that in the limit of small…

High Energy Physics - Phenomenology · Physics 2023-01-11 Andreas Ipp , Markus Leuthner , David I. Müller , Soeren Schlichting , Pragya Singh

In this thesis, an approximation for the full (3+1)D dynamics of the Glasma is presented, which breaks boost-invariance on the level of the nuclear fields and leads to rapidity dependence in the final results. For this treatment, the…

High Energy Physics - Phenomenology · Physics 2026-03-30 Kayran Schmidt

The Glasma is a gluonic state of matter which can be created in collisions of relativistic heavy ions and is a precursor to the quark-gluon plasma. The existence of this state is a prediction of the color glass condensate (CGC) effective…

High Energy Physics - Phenomenology · Physics 2020-09-14 David Müller

So far a major source of uncertainty in the study of heavy-ion collisions arises from the early time dynamics which includes initial state and pre-equilibrium dynamics. The state-of-the-art framework, KoMPoST, employs non-equilibrium…

High Energy Physics - Phenomenology · Physics 2026-05-22 Xiaojian Du , Sören Schlichting , Jie Zhu

In this work, we debut a new implementation of IP-Glasma and quantify the pre-equilibrium longitudinal flow in the IP-Glasma framework. The saturation physics based IP-Glasma model naturally provides a non-zero initial longitudinal flow…

Nuclear Theory · Physics 2017-04-26 Scott McDonald , Chun Shen , Francois Fillion-Gourdeau , Sangyong Jeon , Charles Gale

We simulate the 3+1 D classical Yang-Mills dynamics of the collisions of longitudinally extended nuclei, described by eikonal color charges in the Color Glass Condensate framework. By varying the longitudinal thickness of the colliding…

High Energy Physics - Phenomenology · Physics 2021-02-26 Soeren Schlichting , Pragya Singh

We compute initial conditions in heavy-ion collisions within the Color Glass Condensate (CGC) framework by combining the impact parameter dependent saturation model (IP-Sat) with the classical Yang-Mills description of initial Glasma…

Nuclear Theory · Physics 2012-06-20 Bjoern Schenke , Prithwish Tribedy , Raju Venugopalan

We use effective kinetic theory to study the pre-equilibrium dynamics in heavy-ion collisions. We describe the evolution of linearized energy perturbations on top of out-of-equilibrium background to the energy-momentum tensor at a time when…

Dynamical models based on relativistic fluid dynamics provide a powerful tool to extract the properties of the strongly-coupled quark-gluon plasma (QGP) produced by ultrarelativistic nuclear collisions. The largest source of uncertainty in…

Nuclear Theory · Physics 2019-04-18 J. Scott Moreland

We present an ab-initio approach to compute the longitudinal dependence of the initial state in heavy-ion collisions by including small-x evolution of the nuclear gluon distributions. Extending the IP-Glasma model by including JIMWLK…

High Energy Physics - Phenomenology · Physics 2018-03-14 Björn Schenke , Sören Schlichting

A global Bayesian analysis of relativistic Pb + Pb collisions at $\sqrt{s}_{\rm NN}$ = 2.76 TeV is performed, using a multistage model consisting of an IP-Glasma initial state, a viscous fluid dynamical evolution, and a hadronic transport…

Nuclear Theory · Physics 2024-06-24 Matthew R. Heffernan , Charles Gale , Sangyong Jeon , Jean-François Paquet

We present algorithms to solve relativistic hydrodynamics in 3+1--dimensional situations without apparent symmetry to simplify the solution. In simulations of heavy--ion collisions, these numerical schemes have to deal with the physical…

Nuclear Theory · Physics 2009-10-28 Dirk H. Rischke , Stefan Bernard , Joachim A. Maruhn
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