Collectivity and manifestations of minimum-bias jets in high-energy nuclear collisions
Collectivity, as interpreted to mean flow of a dense medium in high-energy A-A collisions described by hydrodynamics, has been attributed to smaller collision systems – p-A and even p-p collisions – based on recent analysis of LHC data. However, alternative methods reveal that some data features att...
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Format: | Article |
Language: | English |
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EDP Sciences
2018-01-01
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Series: | EPJ Web of Conferences |
Online Access: | https://doi.org/10.1051/epjconf/201817205004 |
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author | A. Trainor Thomas |
author_facet | A. Trainor Thomas |
author_sort | A. Trainor Thomas |
collection | DOAJ |
description | Collectivity, as interpreted to mean flow of a dense medium in high-energy A-A collisions described by hydrodynamics, has been attributed to smaller collision systems – p-A and even p-p collisions – based on recent analysis of LHC data. However, alternative methods reveal that some data features attributed to flows are actually manifestations of minimum-bias (MB) jets. In this presentation I review the differential structure of single-particle pt spectra from SPS to LHC energies in the context of a two-component (soft + hard) model (TCM) of hadron production. I relate the spectrum hard component to measured properties of isolated jets. I use the spectrum TCM to predict accurately the systematics of ensemble-mean p̅t in p-p, p-A and A-A collision systems over a large energy interval. Detailed comparisons of the TCM with spectrum and correlation data suggest that MB jets play a dominant role in hadron production near midrapidity. Claimed flow phenomena are better explained as jet manifestations agreeing quantitatively with measured jet properties. |
first_indexed | 2024-12-17T03:01:09Z |
format | Article |
id | doaj.art-6986785b7ecc44f2892b7dee2a5a451d |
institution | Directory Open Access Journal |
issn | 2100-014X |
language | English |
last_indexed | 2024-12-17T03:01:09Z |
publishDate | 2018-01-01 |
publisher | EDP Sciences |
record_format | Article |
series | EPJ Web of Conferences |
spelling | doaj.art-6986785b7ecc44f2892b7dee2a5a451d2022-12-21T22:06:05ZengEDP SciencesEPJ Web of Conferences2100-014X2018-01-011720500410.1051/epjconf/201817205004epjconf_ismd2018_05004Collectivity and manifestations of minimum-bias jets in high-energy nuclear collisionsA. Trainor ThomasCollectivity, as interpreted to mean flow of a dense medium in high-energy A-A collisions described by hydrodynamics, has been attributed to smaller collision systems – p-A and even p-p collisions – based on recent analysis of LHC data. However, alternative methods reveal that some data features attributed to flows are actually manifestations of minimum-bias (MB) jets. In this presentation I review the differential structure of single-particle pt spectra from SPS to LHC energies in the context of a two-component (soft + hard) model (TCM) of hadron production. I relate the spectrum hard component to measured properties of isolated jets. I use the spectrum TCM to predict accurately the systematics of ensemble-mean p̅t in p-p, p-A and A-A collision systems over a large energy interval. Detailed comparisons of the TCM with spectrum and correlation data suggest that MB jets play a dominant role in hadron production near midrapidity. Claimed flow phenomena are better explained as jet manifestations agreeing quantitatively with measured jet properties.https://doi.org/10.1051/epjconf/201817205004 |
spellingShingle | A. Trainor Thomas Collectivity and manifestations of minimum-bias jets in high-energy nuclear collisions EPJ Web of Conferences |
title | Collectivity and manifestations of minimum-bias jets in high-energy nuclear collisions |
title_full | Collectivity and manifestations of minimum-bias jets in high-energy nuclear collisions |
title_fullStr | Collectivity and manifestations of minimum-bias jets in high-energy nuclear collisions |
title_full_unstemmed | Collectivity and manifestations of minimum-bias jets in high-energy nuclear collisions |
title_short | Collectivity and manifestations of minimum-bias jets in high-energy nuclear collisions |
title_sort | collectivity and manifestations of minimum bias jets in high energy nuclear collisions |
url | https://doi.org/10.1051/epjconf/201817205004 |
work_keys_str_mv | AT atrainorthomas collectivityandmanifestationsofminimumbiasjetsinhighenergynuclearcollisions |