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Related papers: Numerical package for solving the JIMWLK evolution…

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We propose a method for solving the Jalilian-Marian-Iancu-McLerran-Weigert-Leonidov-Kovner (JIMWLK) evolution equation on quantum computers. Our approach exploits the reformulation of the JIMWLK equation as a Lindblad master equation…

High Energy Physics - Phenomenology · Physics 2026-03-04 Anjali A. Agrawal , Evan Budd , Alexander F. Kemper , Vladimir V. Skokov , Andrey Tarasov , Shaswat Tiwari

In the high energy limit of hadron collisions, the evolution of the gluon density in the longitudinal momentum fraction can be deduced from the Balitsky hierarchy of equations or, equivalently, from the nonlinear…

High Energy Physics - Phenomenology · Physics 2021-08-18 Salvatore Cali , Krzysztof Cichy , Piotr Korcyl , Piotr Kotko , Krzysztof Kutak , Cyrille Marquet

NLO evolution of the Jalilian-Marian-Iancu-McLerran-Weigert-Leonidov-Kovner (JIMWLK) equation with massless quarks was derived a few years ago. We make a step further to compute the evolution kernels focusing on the effects due to finite…

High Energy Physics - Phenomenology · Physics 2022-08-10 Lin Dai , Michael Lublinsky

MERLIN is an accelerator physics library written in C++ which can be used for a range of accelerator tracking simulations, including collimation in hadron colliders. Recently MERLIN has been upgraded to provide a robust tool for HL-LHC…

Accelerator Physics · Physics 2019-03-21 Haroon Rafique , Robert B Appleby , Roger J Barlow , James G Molson , Sam Tygier , Alessandra Valloni

Within the effective theory for the Color Glass Condensate, we study multi-particle production with rapidity correlations in proton-nucleus collisions at high energy. The high-energy evolution responsible for such correlations is governed…

High Energy Physics - Phenomenology · Physics 2015-06-16 E. Iancu , D. N. Triantafyllopoulos

This paper describes a modular framework for the description of electroweak scattering and decay processes, including but not limited to Z-resonance physics. The framework consistently combines a complex-pole expansion near a s-channel…

High Energy Physics - Phenomenology · Physics 2023-10-12 Lisong Chen , Ayres Freitas

The Large Hadron Collider (LHC) at CERN will see an upgraded hardware configuration which will bring a new era of physics data taking and related computational challenges. To this end, it is necessary to exploit the ever increasing variety…

Distributed, Parallel, and Cluster Computing · Computer Science 2023-12-06 Monica Dessole , Jolly Chen , Axel Naumann

We present a simple yet efficient algorithm for phase-space integration at hadron colliders. Individual mappings consist of a single t-channel combined with any number of s-channel decays, and are constructed using diagrammatic information.…

High Energy Physics - Phenomenology · Physics 2023-10-18 Enrico Bothmann , Taylor Childers , Walter Giele , Florian Herren , Stefan Hoeche , Joshua Isaacson , Max Knobbe , Rui Wang

We include the perturbative JIMWLK energy evolution into the IP-Glasma initial state description used to simulate the early-time dynamics in heavy ion collisions. By numerically solving the JIMWLK equation on an event-by-event basis, we…

Nuclear Theory · Physics 2025-08-29 Heikki Mäntysaari , Björn Schenke , Chun Shen , Wenbin Zhao

We quantify the effect of high-energy JIMWLK evolution on the deformed structure or heavy (Uranium) and intermediate (Ruthenium) nuclei. The soft gluon emissions in the high-energy evolution are found to drive the initially deformed nuclei…

Nuclear Theory · Physics 2024-11-25 Heikki Mäntysaari , Pragya Singh

The Jalilian-Marian,Iancu, McLerran, Weigert, Leonidov, Kovner (JIMWLK) Hamiltonian for high energy evolution of QCD amplitudes is presented at the next-to-leading order accuracy in $\alpha_s$. The form of the Hamiltonian is deduced from…

High Energy Physics - Phenomenology · Physics 2014-04-23 Alex Kovner , Michael Lublinsky , Yair Mulian

We present the program Top++ for the numerical evaluation of the total inclusive cross-section for producing top quark pairs at hadron colliders. The program calculates the cross-section in a) fixed order approach with exact next-to-next-to…

High Energy Physics - Phenomenology · Physics 2014-08-29 Michal Czakon , Alexander Mitov

Merlin++ is a C++ charged-particle tracking library developed for the simulation and analysis of complex beam dynamics within high energy particle accelerators. Accurate simulation and analysis of particle dynamics is an essential part of…

The small-$x$ evolution of protons is determined from numerical solutions of the JIMWLK equations, starting from an initial condition at moderate $x$ for a finite size proton. The resulting dipole amplitude is used to calculate the total…

High Energy Physics - Phenomenology · Physics 2018-08-22 Heikki Mäntysaari , Björn Schenke

The fast Monte Carlo procedure of hadron generation developed in our previous work is extended to describe noncentral collisions of nuclei. We consider different possibilities to introduce appropriate asymmetry of the freeze-out…

High Energy Physics - Phenomenology · Physics 2008-11-26 N. S. Amelin , R. Lednicky , I. P. Lokhtin , L. V. Malinina , A. M. Snigirev , Iu. A. Karpenko , Yu. M. Sinyukov , I. Arsene , L. Bravina

HEP-Frame is a new C++ package designed to efficiently perform analyses of data sets from a very large number of events, like those available at the Large Hadron Collider (LHC) at CERN, Geneva. It mainly targets high performance servers and…

High Energy Physics - Experiment · Physics 2023-03-10 A. Pereira , A. Onofre , A. Proenca

These lectures discuss aspects of high energy evolution in QCD. This includes the derivation of the JIMWLK equation, basic physics of its solutions and recent work on inclusion of Pomeron loops. The entire discussion is given in the…

High Energy Physics - Phenomenology · Physics 2007-05-23 Alex Kovner

We revisit the numerical construction of the initial condition for the dipole amplitude from the McLerran-Venugopalan model in the context of the JIMWLK evolution equation. We observe large finite volume effects induced by the Poisson…

High Energy Physics - Phenomenology · Physics 2022-05-11 Piotr Korcyl

The composite load model (CLM) proposed by the Western Electricity Coordinating Council (WECC) is gaining increasing traction in industry, particularly in North America. At the same time, it has been recognized that further improvements in…

Systems and Control · Computer Science 2017-08-04 Qiuhua Huang , Renke Huang , Bruce J. Palmer , Yuan Liu , Shuangshuang Jin , Ruisheng Diao , Yousu Chen , Yu Zhang

A simple derivation of the Jalilian-Marian, Iancu, McLerran, Weigert, Leonidov and Kovner (JIMWLK) equation for the evolution of small-x QCD wavefunctions is given. The derivation makes use of the equivalence between the evolution of a (in…

High Energy Physics - Phenomenology · Physics 2009-11-07 A. H. Mueller
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