From soft to hard radiation: the role of multiple scatterings in medium-induced gluon emissions
Abstract A proper understanding of the physics of medium-induced gluon emissions is known to be of critical importance to describe the properties of strongly interacting matter under extreme conditions. In this regard, many theoretical efforts have been directed towards obtaining analytical calculat...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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SpringerOpen
2021-03-01
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| Series: | Journal of High Energy Physics |
| Subjects: | |
| Online Access: | https://doi.org/10.1007/JHEP03(2021)102 |
| _version_ | 1819141525671510016 |
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| author | Carlota Andres Fabio Dominguez Marcos Gonzalez Martinez |
| author_facet | Carlota Andres Fabio Dominguez Marcos Gonzalez Martinez |
| author_sort | Carlota Andres |
| collection | DOAJ |
| description | Abstract A proper understanding of the physics of medium-induced gluon emissions is known to be of critical importance to describe the properties of strongly interacting matter under extreme conditions. In this regard, many theoretical efforts have been directed towards obtaining analytical calculations which might help us discerning the underlying physical picture and the dominant dynamics for different regimes. These analytical approaches rely on approximations whose validity is analyzed here by comparing their results with a recently developed numerical evaluation which includes all-order resummation of multiple scatterings. More specifically, by quantitatively comparing the energy spectrum and rates, we observe that three different regimes — each with its corresponding physical picture — emerge naturally from the equations: the high-energy regime where the emission process is dominated by a single hard scattering, the intermediate-energy regime where coherence effects among multiple scatterings become fundamental, and the low-energy regime where the dynamics is again dominated by a single scattering but where one must include the suppression factor due to the probability of not having any further scatterings (which is obtained through the resummation of virtual terms). |
| first_indexed | 2024-12-22T11:55:50Z |
| format | Article |
| id | doaj.art-ab24a3cad3274012a232d2f25bb6a682 |
| institution | Directory Open Access Journal |
| issn | 1029-8479 |
| language | English |
| last_indexed | 2024-12-22T11:55:50Z |
| publishDate | 2021-03-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Journal of High Energy Physics |
| spelling | doaj.art-ab24a3cad3274012a232d2f25bb6a6822022-12-21T18:26:47ZengSpringerOpenJournal of High Energy Physics1029-84792021-03-012021312110.1007/JHEP03(2021)102From soft to hard radiation: the role of multiple scatterings in medium-induced gluon emissionsCarlota Andres0Fabio Dominguez1Marcos Gonzalez Martinez2LIPInstituto Galego de Física de Altas Enerxías IGFAE, Universidade de Santiago de CompostelaInstituto Galego de Física de Altas Enerxías IGFAE, Universidade de Santiago de CompostelaAbstract A proper understanding of the physics of medium-induced gluon emissions is known to be of critical importance to describe the properties of strongly interacting matter under extreme conditions. In this regard, many theoretical efforts have been directed towards obtaining analytical calculations which might help us discerning the underlying physical picture and the dominant dynamics for different regimes. These analytical approaches rely on approximations whose validity is analyzed here by comparing their results with a recently developed numerical evaluation which includes all-order resummation of multiple scatterings. More specifically, by quantitatively comparing the energy spectrum and rates, we observe that three different regimes — each with its corresponding physical picture — emerge naturally from the equations: the high-energy regime where the emission process is dominated by a single hard scattering, the intermediate-energy regime where coherence effects among multiple scatterings become fundamental, and the low-energy regime where the dynamics is again dominated by a single scattering but where one must include the suppression factor due to the probability of not having any further scatterings (which is obtained through the resummation of virtual terms).https://doi.org/10.1007/JHEP03(2021)102Heavy Ion PhenomenologyJets |
| spellingShingle | Carlota Andres Fabio Dominguez Marcos Gonzalez Martinez From soft to hard radiation: the role of multiple scatterings in medium-induced gluon emissions Journal of High Energy Physics Heavy Ion Phenomenology Jets |
| title | From soft to hard radiation: the role of multiple scatterings in medium-induced gluon emissions |
| title_full | From soft to hard radiation: the role of multiple scatterings in medium-induced gluon emissions |
| title_fullStr | From soft to hard radiation: the role of multiple scatterings in medium-induced gluon emissions |
| title_full_unstemmed | From soft to hard radiation: the role of multiple scatterings in medium-induced gluon emissions |
| title_short | From soft to hard radiation: the role of multiple scatterings in medium-induced gluon emissions |
| title_sort | from soft to hard radiation the role of multiple scatterings in medium induced gluon emissions |
| topic | Heavy Ion Phenomenology Jets |
| url | https://doi.org/10.1007/JHEP03(2021)102 |
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