Jet quenching as a probe of the initial stages in heavy-ion collisions
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Title: | Jet quenching as a probe of the initial stages in heavy-ion collisions |
Author: | Andres, Carlota Armesto Pérez, Néstor Niemi, Harri Paatelainen, Risto Salgado López, Carlos Alberto |
Affiliation: | Universidade de Santiago de Compostela. Departamento de Física de Partículas Universidade de Santiago de Compostela. Instituto Galego de Física de Altas Enerxías (IGFAE) |
Subject: | Heavy-ions | Jet quenching | Initial stages | |
Date of Issue: | 2020 |
Publisher: | Elsevier |
Citation: | Carlota Andres, Néstor Armesto, Harri Niemi, Risto Paatelainen, Carlos A. Salgado, Jet quenching as a probe of the initial stages in heavy-ion collisions, Physics Letters B, Volume 803, 2020, 135318, ISSN 0370-2693, https://doi.org/10.1016/j.physletb.2020.135318 |
Abstract: | Jet quenching provides a very flexible variety of observables which are sensitive to different energy- and time-scales of the strongly interacting matter created in heavy-ion collisions. Exploiting this versatility would make jet quenching an excellent chronometer of the yoctosecond structure of the evolution process. Here we show, for the first time, that a combination of jet quenching observables is sensitive to the initial stages of heavy-ion collisions, when the approach to local thermal equilibrium is expected to happen. Specifically, we find that in order to reproduce at the same time the inclusive particle production suppression, , and the high- azimuthal asymmetries, , energy loss must be strongly suppressed for the first ∼0.6 fm. This exploratory analysis shows the potential of jet observables, possibly more sophisticated than the ones studied here, to constrain the dynamics of the initial stages of the evolution. |
Publisher version: | https://doi.org/10.1016/j.physletb.2020.135318 |
URI: | http://hdl.handle.net/10347/21869 |
DOI: | 10.1016/j.physletb.2020.135318 |
ISSN: | 0370-2693 |
E-ISSN: | 1873-2445 |
Rights: | ©2020 The Author(s). Published by Elsevier B.V. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/). |
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