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QGP tomography SIGNED

A novel Quark-Gluon Plasma tomography tool: from jet quenching to exploring the extreme medium properties

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Project "QGP tomography" data sheet

The following table provides information about the project.

Coordinator
INSTITUT ZA FIZIKU 

Organization address
address: PREGREVICA 118
city: BEOGRAD
postcode: 11080
website: www.ipb.ac.rs

contact info
title: n.a.
name: n.a.
surname: n.a.
function: n.a.
email: n.a.
telephone: n.a.
fax: n.a.

 Coordinator Country Serbia [RS]
 Total cost 1˙356˙000 €
 EC max contribution 1˙356˙000 € (100%)
 Programme 1. H2020-EU.1.1. (EXCELLENT SCIENCE - European Research Council (ERC))
 Code Call ERC-2016-COG
 Funding Scheme ERC-COG
 Starting year 2017
 Duration (year-month-day) from 2017-09-01   to  2022-08-31

 Partnership

Take a look of project's partnership.

# participants  country  role  EC contrib. [€] 
1    INSTITUT ZA FIZIKU RS (BEOGRAD) coordinator 1˙356˙000.00

Map

 Project objective

Quark-Gluon Plasma (QGP) is a primordial state of matter, which consists of interacting free quarks and gluons. QGP likely existed immediately after the Big-Bang, and this extreme form of matter is today created in Little Bangs, which are ultra-relativistic collisions of heavy nuclei at the LHC and RHIC experiments. Based on the deconfinement ideas, a gas-like behaviour of QGP was anticipated. Unexpectedly, predictions of relativistic hydrodynamics - applicable to low momentum hadron data - indicated that QGP behaves as nearly perfect fluid, thus bringing exciting connections between the hottest (QGP) and the coldest (perfect Fermi gas) matter on Earth. However, predictions of hydrodynamical simulations are often weakly sensitive to changes of the bulk QGP parameters. In particular, even a large increase of viscosity not far from the phase transition does not notably change the low momentum predictions; in addition, the origin of the surprisingly low viscosity remains unclear. To understand the QGP properties, and to challenge the perfect fluid paradigm, we will develop a novel precision tomographic tool based on: i) state of the art, no free parameters, energy loss model of high momentum parton interactions with evolving QGP, ii) simulations of QGP evolution, in which the medium parameters will be systematically varied, and the resulting temperature profiles used as inputs for the energy loss model. In a substantially novel approach, this will allow using the data of rare high momentum particles to constrain the properties of the bulk medium. We will use this tool to: i) test our “soft-to-hard” medium hypothesis, i.e. if the bulk behaves as a nearly perfect fluid near critical temperature Tc, and as a weakly coupled system at higher temperatures, ii) map “soft-to-hard” boundary for QGP, iii) understand the origin of the low viscosity near Tc, and iv) test if QGP is formed in small (pp or p(d)A) systems.

 Publications

year authors and title journal last update
List of publications.
2019 Dusan Zigic, Igor Salom, Jussi Auvinen, Marko Djordjevic, Magdalena Djordjevic
DREENA-C framework: joint R AA and v 2 predictions and implications to QGP tomography
published pages: 85101, ISSN: 0954-3899, DOI: 10.1088/1361-6471/ab2356
Journal of Physics G: Nuclear and Particle Physics 46/8 2020-03-13
2019 Bojana Blagojevic, Magdalena Djordjevic, Marko Djordjevic
Calculating hard probe radiative energy loss beyond the soft-gluon approximation: Examining the approximation validity
published pages: , ISSN: 2469-9985, DOI: 10.1103/PhysRevC.99.024901
Physical Review C 99/2 2020-03-13
2019 Magdalena Djordjevic, Dusan Zigic, Bojana Blagojevic, Jussi Auvinen, Igor Salom, Marko Djordjevic
Dynamical energy loss formalism: from describing suppression patterns to implications for future experiments
published pages: 699-702, ISSN: 0375-9474, DOI: 10.1016/j.nuclphysa.2018.10.020
Nuclear Physics A 982 2020-03-13
2019 Magdalena Djordjevic, Stefan Stojku, Marko Djordjevic, Pasi Huovinen
Shape of the quark gluon plasma droplet reflected in the high- p ⊥ data
published pages: , ISSN: 2469-9985, DOI: 10.1103/PhysRevC.100.031901
Physical Review C 100/3 2020-03-13
2019 Dusan Zigic, Igor Salom, Jussi Auvinen, Marko Djordjevic, Magdalena Djordjevic
DREENA-B framework: First predictions of R and v2 within dynamical energy loss formalism in evolving QCD medium
published pages: 236-241, ISSN: 0370-2693, DOI: 10.1016/j.physletb.2019.02.020
Physics Letters B 791 2019-05-27
2019 Bojana Blagojevic, Magdalena Djordjevic, Marko Djordjevic
Calculating hard probe radiative energy loss beyond the soft-gluon approximation: Examining the approximation validity
published pages: , ISSN: 2469-9985, DOI: 10.1103/physrevc.99.024901
Physical Review C 99/2 2019-05-27

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