Picturing QCD jets in anisotropic matter: from jet shapes to energy energy correlators
Abstract Recent theoretical developments in the description of jet evolution in the quark gluon plasma have allowed to account for the effects of hydrodynamic gradients in the medium modified jet spectra. These constitute a crucial step towards using jets as tomographic probes of the nuclear matter...
| Päätekijät: | , , |
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| Aineistotyyppi: | Artikkeli |
| Kieli: | English |
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SpringerOpen
2024-02-01
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| Sarja: | European Physical Journal C: Particles and Fields |
| Linkit: | https://doi.org/10.1140/epjc/s10052-024-12514-1 |
| _version_ | 1827284103319257088 |
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| author | João Barata José Guilherme Milhano Andrey V. Sadofyev |
| author_facet | João Barata José Guilherme Milhano Andrey V. Sadofyev |
| author_sort | João Barata |
| collection | DOAJ |
| description | Abstract Recent theoretical developments in the description of jet evolution in the quark gluon plasma have allowed to account for the effects of hydrodynamic gradients in the medium modified jet spectra. These constitute a crucial step towards using jets as tomographic probes of the nuclear matter they traverse. In this work, we complement these studies by providing leading order calculations of widely studied jet observables, taking into account matter anisotropies. We show that the energy distribution inside a jet is pushed towards the direction of the largest matter anisotropy, while the away region is depleted. As a consequence, the jet mass and girth gain a non-trivial azimuthal dependence, with the average value of the distribution increasing along the direction of largest gradients. However, we find that, for these jet shapes, matter anisotropic effects can be potentially suppressed by vacuum Sudakov factors. We argue that the recently proposed measurements of energy correlations within jets do not suffer from such effects, with the azimuthal dependence being visible in a large angular window, regardless of the shape of the distribution. |
| first_indexed | 2024-03-07T14:44:46Z |
| format | Article |
| id | doaj.art-76e2b11a6cc44e8c84db0b73bfc0ce39 |
| institution | Directory Open Access Journal |
| issn | 1434-6052 |
| language | English |
| last_indexed | 2024-04-24T09:49:58Z |
| publishDate | 2024-02-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | European Physical Journal C: Particles and Fields |
| spelling | doaj.art-76e2b11a6cc44e8c84db0b73bfc0ce392024-04-14T11:27:10ZengSpringerOpenEuropean Physical Journal C: Particles and Fields1434-60522024-02-0184211010.1140/epjc/s10052-024-12514-1Picturing QCD jets in anisotropic matter: from jet shapes to energy energy correlatorsJoão Barata0José Guilherme Milhano1Andrey V. Sadofyev2Physics Department, Brookhaven National LaboratoryLIPLIPAbstract Recent theoretical developments in the description of jet evolution in the quark gluon plasma have allowed to account for the effects of hydrodynamic gradients in the medium modified jet spectra. These constitute a crucial step towards using jets as tomographic probes of the nuclear matter they traverse. In this work, we complement these studies by providing leading order calculations of widely studied jet observables, taking into account matter anisotropies. We show that the energy distribution inside a jet is pushed towards the direction of the largest matter anisotropy, while the away region is depleted. As a consequence, the jet mass and girth gain a non-trivial azimuthal dependence, with the average value of the distribution increasing along the direction of largest gradients. However, we find that, for these jet shapes, matter anisotropic effects can be potentially suppressed by vacuum Sudakov factors. We argue that the recently proposed measurements of energy correlations within jets do not suffer from such effects, with the azimuthal dependence being visible in a large angular window, regardless of the shape of the distribution.https://doi.org/10.1140/epjc/s10052-024-12514-1 |
| spellingShingle | João Barata José Guilherme Milhano Andrey V. Sadofyev Picturing QCD jets in anisotropic matter: from jet shapes to energy energy correlators European Physical Journal C: Particles and Fields |
| title | Picturing QCD jets in anisotropic matter: from jet shapes to energy energy correlators |
| title_full | Picturing QCD jets in anisotropic matter: from jet shapes to energy energy correlators |
| title_fullStr | Picturing QCD jets in anisotropic matter: from jet shapes to energy energy correlators |
| title_full_unstemmed | Picturing QCD jets in anisotropic matter: from jet shapes to energy energy correlators |
| title_short | Picturing QCD jets in anisotropic matter: from jet shapes to energy energy correlators |
| title_sort | picturing qcd jets in anisotropic matter from jet shapes to energy energy correlators |
| url | https://doi.org/10.1140/epjc/s10052-024-12514-1 |
| work_keys_str_mv | AT joaobarata picturingqcdjetsinanisotropicmatterfromjetshapestoenergyenergycorrelators AT joseguilhermemilhano picturingqcdjetsinanisotropicmatterfromjetshapestoenergyenergycorrelators AT andreyvsadofyev picturingqcdjetsinanisotropicmatterfromjetshapestoenergyenergycorrelators |