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Related papers: Glasma properties in small proper time expansion

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According to the Color Glass Condensate approach to relativistic heavy-ion collisions, the earliest phase of the collision is a glasma which is made of highly populated gluon fields that can be treated classically. Using a proper time…

Nuclear Theory · Physics 2024-05-14 Margaret E. Carrington , Stanislaw Mrowczynski

We present analytic results that describe the gluon field, or glasma, at very early times after a collision of relativistic heavy ions at proper time $\tau=0$. We use a Colour Glass Condensate approach, and perform an expansion in $\tau$.…

High Energy Physics - Phenomenology · Physics 2022-10-05 Margaret E. Carrington , Alina Czajka , Stanislaw Mrówczyński

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…

Jets are important probes of heavy ion collisions as they can provide information on the interaction of a highly energetic parton with the medium it traverses. In the hydrodynamic stage of dense, strongly interacting matter, these…

High Energy Physics - Phenomenology · Physics 2020-10-01 Andreas Ipp , David I. Müller , Daniel Schuh

We study the jet quenching parameter $\hat q$ in the initial pre-equilibrium stages of heavy-ion collisions using the QCD kinetic theory description of the anisotropic quark-gluon plasma. This allows us to smoothly close the gap in the…

High Energy Physics - Phenomenology · Physics 2025-06-25 Kirill Boguslavski , Aleksi Kurkela , Tuomas Lappi , Florian Lindenbauer , Jarkko Peuron

We study the momentum broadening of a high-energy quark jet in the large density gluon medium created right after the collision of two ultrarelativistic heavy nuclei, the Glasma. Previous Glasma studies modeled the jet as a classical probe…

High Energy Physics - Phenomenology · Physics 2025-11-19 Dana Avramescu , Carlos Lamas , Tuomas Lappi , Meijian Li , Carlos A. Salgado

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 calculate the transverse momentum broadening $\hat q$ and collisional energy loss $dE/dx$ of hard probes traversing an evolving glasma during the earliest phase of a relativistic heavy-ion collision. We use a Fokker-Planck equation and…

Nuclear Theory · Physics 2022-07-13 Margaret E. Carrington , Alina Czajka , Stanislaw Mrowczynski

We discuss the transverse momentum broadening of hard probes traversing an evolving glasma, which is the earliest phase of the matter produced in relativistic heavy-ion collisions. The coefficient $\hat q$ is calculated using the…

High Energy Physics - Phenomenology · Physics 2022-09-30 Margaret E. Carrington , Alina Czajka , Stanislaw Mrowczynski

Jet quenching provides a very flexible variety of observables which are sensitive to different energy- and time-scales of the strongly interacting matter created in heavy-ion collisions. Exploiting this versatility would make jet quenching…

High Energy Physics - Phenomenology · Physics 2020-03-02 Carlota Andres , Néstor Armesto , Harri Niemi , Risto Paatelainen , Carlos A. Salgado

In heavy-ion collisions, nuclear matter is subjected to extreme conditions in a highly dynamical, rapidly evolving environment. This poses a tremendous challenge for calculating jet quenching observables. Current approaches rely on…

High Energy Physics - Phenomenology · Physics 2026-05-29 Souvik Priyam Adhya , Konrad Tywoniuk

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

We compute the transport coefficient $\hat q$ which quantifies the transverse momentum broadening of hard probes passing through the evolving glasma from the earliest stage of relativistic heavy-ion collisions. We use a proper-time…

Nuclear Theory · Physics 2026-04-06 Margaret E. Carrington , Bryce T. Friesen , Stanislaw Mrowczynski

The initial energy density produced in an ultrarelativistic heavy ion collision can, in the color glass condensate framework, be factorized into a product of the integrated gluon distributions of the nuclei. Although this energy density is…

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

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

Measuring the energy loss of energetic jet partons may provide experimental opportunities to constrain the initial nonequilibrium stages in heavy-ion collisions, which requires theoretical predictions for the jet-medium potential. In this…

High Energy Physics - Phenomenology · Physics 2025-09-05 Alois Altenburger , Kirill Boguslavski , Florian Lindenbauer

The study of jets in heavy-ion collisions provides important information about the interaction of partons with the medium that they traverse. The seeds of jets are highly energetic partons, which are produced from hard scatterings during…

High Energy Physics - Phenomenology · Physics 2021-11-08 Andreas Ipp , David I. Müller , Daniel Schuh

The IP-Glasma initial condition has been highly successful in the phenomenology of ultra-relativistic heavy ion collisions. The assumption of boost invariance, however, while good for collision energies probed at the LHC, limits the use of…

High Energy Physics - Phenomenology · Physics 2023-06-09 Scott McDonald , Sangyong Jeon , Charles Gale

We extensively study the growing behavior of the energy and the pressure components depending on the space-time rapidity in the framework of the Glasma, which describes the early-time dynamics in the ultra-relativistic heavy-ion collisions.…

High Energy Physics - Phenomenology · Physics 2015-05-28 Kenji Fukushima , Francois Gelis

The ATLAS Collaboration recently reported strong modifications of dijet properties in heavy ion collisions. In this work, we discuss to what extent these first data constrain already the microscopic mechanism underlying jet quenching.…

High Energy Physics - Phenomenology · Physics 2015-05-20 Jorge Casalderrey-Solana , Jose Guilherme Milhano , Urs Achim Wiedemann
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