Hard jet substructure in a multistage approach

We present predictions and postdictions for a wide variety of hard jet-substructure observables using a multistage model within the framework. The details of the multistage model and the various parameter choices are described in []. A novel feature of this model is the presence of two stages of jet modification: a high-virtuality phase [modeled using the modular all twist transverse-scattering elastic-drag and radiation model ()], where modified coherence effects diminish medium-induced radiation, and a lower virtuality phase [modeled using the linear Boltzmann transport model ()], where parton splits are fully resolved by the medium as they endure multiple scattering induced energy loss. Energy-loss calculations are carried out on event-by-event viscous fluid dynamic backgrounds constrained by experimental data. The uniform and consistent descriptions of multiple experimental observables demonstrate the essential role of modified coherence effects and the multistage modeling of jet evolution. Using the best choice of parameters from [], and with no further tuning, we present calculations for the medium modified jet fragmentation function, the groomed jet momentum fraction <a:math xmlns:a="http://www.w3.org/1998/Math/MathML"><a:msub><a:mi>z</a:mi><a:mi>g</a:mi></a:msub></a:math> and angular separation <b:math xmlns:b="http://www.w3.org/1998/Math/MathML"><b:msub><b:mi>r</b:mi><b:mi>g</b:mi></b:msub></b:math> distributions, as well as the nuclear modification factor of groomed jets. These calculations provide accurate descriptions of published data from experiments at the Large Hadron Collider. Furthermore, we provide predictions from the multistage model for future measurements at the BNL Relativistic Heavy Ion Collider. Published by the American Physical Society 2024

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Publication Details

Journal
Physical review. C
Published
2024-10-16
DOI
https://doi.org/10.1103/physrevc.110.044907
Citations
11
Primary Topic
High-Energy Particle Collisions Research
Type
article
Field-Weighted Citation Impact
7.26

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article

Hard jet substructure in a multistage approach

Amit Kumar, Y.-J. Lee, X.-N. Wang, Shanshan Cao et al.
11 citations
Physical review. C
High-Energy Particle Collisions Research
7.26
article

Hard jet substructure in a multistage approach

Amit Kumar, Y.-J. Lee, X.-N. Wang, Shanshan Cao, Michael Strickland, R. A. Soltz, Charles Gale, Björn Schenke, Weiyao Ke, D. Liyanage, Matthew Luzum, Joseph Latessa, M. Kelsey, M. Kordell, D. Oliinychenko, A. Sengupta, Jean-François Paquet, J. H. Putschke, C. Nattrass, R. Arora, C. Sirimanna, Steffen A. Bass, Y. Chen, Ismail Soudi, Yayun He, Chun Shen, C. De Martín, M. Heffernan, H. Mehryar, Sangyong Jeon, R. L. Wolpert, Lipei Du, Y. Tachibana, Wenkai Fan, Andi Mankolli, A. Silva, Hannah Elfner, Yi Ji, R. J. Fries, L. Kasper, J. Staudenmaier, Ulrich Heinz, T. Mengel, G. Vujanovic, Loren Schwiebert, A. Angerami, Wenbin Zhao, D. Soeder, Simon Mak, James Declan Mulligan, G. Roland, Abhijit Majumder, T. Dai, A. Lopez, J. Velkovska, P.M. Jacobs, K. Kauder, B. V. Jacak, R. J. Ehlers
article en
11 citations

Abstract

We present predictions and postdictions for a wide variety of hard jet-substructure observables using a multistage model within the framework. The details of the multistage model and the various parameter choices are described in []. A novel feature of this model is the presence of two stages of jet modification: a high-virtuality phase [modeled using the modular all twist transverse-scattering elastic-drag and radiation model ()], where modified coherence effects diminish medium-induced radiation, and a lower virtuality phase [modeled using the linear Boltzmann transport model ()], where parton splits are fully resolved by the medium as they endure multiple scattering induced energy loss. Energy-loss calculations are carried out on event-by-event viscous fluid dynamic backgrounds constrained by experimental data. The uniform and consistent descriptions of multiple experimental observables demonstrate the essential role of modified coherence effects and the multistage modeling of jet evolution. Using the best choice of parameters from [], and with no further tuning, we present calculations for the medium modified jet fragmentation function, the groomed jet momentum fraction <a:math xmlns:a="http://www.w3.org/1998/Math/MathML"><a:msub><a:mi>z</a:mi><a:mi>g</a:mi></a:msub></a:math> and angular separation <b:math xmlns:b="http://www.w3.org/1998/Math/MathML"><b:msub><b:mi>r</b:mi><b:mi>g</b:mi></b:msub></b:math> distributions, as well as the nuclear modification factor of groomed jets. These calculations provide accurate descriptions of published data from experiments at the Large Hadron Collider. Furthermore, we provide predictions from the multistage model for future measurements at the BNL Relativistic Heavy Ion Collider. Published by the American Physical Society 2024

Physical review. CVol. 110(4)
Goethe University Frankfurt (DE), Lawrence Livermore National Laboratory (US), Oak Ridge National Laboratory (US), Goethe-Institute United Kingdom (GB), Los Alamos National Laboratory (US), Lawrence Berkeley National Laboratory (US), Kent State University (US), Shandong University (CN), GSI Helmholtz Centre for Heavy Ion Research (DE), Duke University (US), Universidade de São Paulo (BR), Wayne State University (US), South China Normal University (CN), University of Regina (CA), Vanderbilt University (US), Brookhaven National Laboratory (US), University of Washington (US), Mitchell Institute (US), Frankfurt Institute for Advanced Studies (DE), University of California System (US), Central China Normal University (CN), RIKEN BNL Research Center (US), The University of Texas at San Antonio (US), McGill University (CA), The Ohio State University (US), Massachusetts Institute of Technology (US), Akita International University (JP), University of Tennessee at Knoxville (US), Texas A&M University (US), University of California, Berkeley (US)
National Science Foundation, U.S. Department of Energy, Alexander von Humboldt-Stiftung, Wayne State University, University of Regina, Canada Research Chairs, Fundação de Amparo à Pesquisa do Estado de São Paulo, National Natural Science Foundation of China, Central China Normal University, Office of Science, Office of the Vice President for Research, Wayne State University, Natural Sciences and Engineering Research Council of Canada, Japan Society for the Promotion of Science, Nuclear Physics
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High-Energy Particle Collisions Research
7.26
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