Extracting qˆ in event-by-event hydrodynamics and the centrality/energy puzzle

In our analysis, we combine event-by-event hydrodynamics, within the EKRT formulation, with jet quenching -ASW Quenching Weights- to obtain high-pTRAA for charged particles at RHIC and LHC energies for different centralities. By defining a K-factor that quantifies the departure of qˆ from an ideal e...

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Bibliographic Details
Published inNuclear physics. A Vol. 967; pp. 492 - 495
Main Authors Andres, Carlota, Armesto, Nestor, Niemi, Harri, Paatelainen, Risto, Salgado, Carlos A., Zurita, Pia
Format Journal Article
LanguageEnglish
Published Elsevier B.V 01.11.2017
Subjects
energy loss
event-by-event hydrodynamics
jet quenching
event-by-event hydrodynamics
jet quenching
energy loss
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Summary:In our analysis, we combine event-by-event hydrodynamics, within the EKRT formulation, with jet quenching -ASW Quenching Weights- to obtain high-pTRAA for charged particles at RHIC and LHC energies for different centralities. By defining a K-factor that quantifies the departure of qˆ from an ideal estimate, K=qˆ/(2ϵ3/4), we fit the single-inclusive experimental data for charged particles. This K-factor is larger at RHIC than at the LHC but, surprisingly, it is almost independent of the centrality of the collision.
ISSN:0375-9474
DOI:10.1016/j.nuclphysa.2017.05.115