A1 Journal article (refereed)
Jet quenching as a probe of the initial stages in heavy-ion collisions (2020)

Andres, C., Armesto, N., Niemi, H., Paatelainen, R., & Salgado, C. A. (2020). Jet quenching as a probe of the initial stages in heavy-ion collisions. Physics Letters B, 803, Article 135318. https://doi.org/10.1016/j.physletb.2020.135318

JYU authors or editors

Publication details

All authors or editors: Andres, Carlota; Armesto, Néstor; Niemi, Harri; Paatelainen, Risto; Salgado, Carlos A.

Journal or series: Physics Letters B

ISSN: 0370-2693

eISSN: 1873-2445

Publication year: 2020

Volume: 803

Article number: 135318

Publisher: Elsevier

Publication country: Netherlands

Publication language: English

DOI: https://doi.org/10.1016/j.physletb.2020.135318

Publication open access: Openly available

Publication channel open access: Open Access channel

Publication is parallel published (JYX): https://jyx.jyu.fi/handle/123456789/67983

Web address of parallel published publication (pre-print): https://arxiv.org/abs/1902.03231

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.

Keywords: ions; particle physics

Free keywords: heavy-ions; jet quenching; initial stages

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Related projects

Ministry reporting: Yes

Reporting Year: 2020

JUFO rating: 2