Quark-Gluon Plasma Laboratory (LQGP)

LQGP

The Quark-Gluon Plasma Laboratory studies ultra-relativistic heavy-ion collisions, with the main aim of identifying and studying a new state of nuclear matter in which quarks and gluons are deconfined, the Quark-Gluon Plasma (QGP). This QGP is thought to have existed in the early universe. The LQGP participated in the PHENIX experiment at RHIC, BNL, and is currently involved in the ALICE experiment at LHC, CERN.

LQGP is preparing for the future through its involvement in LHCb upgrade projects.

Highlights

Michael Winn, physicist at IRFU, receives the CNRS Bronze Medal in the 2025 awards

06/16/2025
LHCb: Ions for Christmas!

04/02/2025
CERN’s ALICE collaboration reports new results on a charming messenger of quarks and gluon plasma

07/02/2020
Chips on a ladder: end of production for ALICE-MFT

06/08/2020
Bottomonium elliptic-flow no-show

01/17/2020
Can Quark-Gluon Plasma Be Produced by Proton Collisions?

04/25/2017
More Precise Hints on the Quark–Gluon Plasma

01/30/2017
L’age de glace du LHC

11/21/2014

Projects

ALICE

The ALICE experiment is devoted to the study of nuclear matter under extreme conditions of temperature and density. It is specially designed to test the fundamental theory of the strong interaction,…
sPHENIX

sPHENIX is a new detector that will be installed at RHIC, BNL. sPHENIX will feature the most advanced technologies for studying strongly coupled quark-gluon plasma using jets and heavy flavors as observables. The goal of sPHENIX is to understand the microscopic structure of plasma and reveal how its strongly coupled nature emerges from the elementary…

Jobs

A novel muon identification method for dileptons from the initial stages of collisions at the LHC

Stage M2

Saclay

03/26/2026

04/25/2026

Domain, Specialties : Physique corpusculaire des accélérateurs Keywords: Particle physics; QGP, detector physics, LHC Research Unit : DPhN / LQGP The Quark-Gluon Plasma (QGP) is an exotic state of matter created under extreme conditions at the LHC at CERN. It is one of the first stages of matter after the Big Bang. The internship’s goal…

Read more: A novel muon identification method for dileptons from the initial stages of collisions at the LHC
Quark Gluon Plasma equation of state

Stage M2

Saclay

03/16/2026

10/16/2025

Domain, Specialties : Physique corpusculaire des accélérateurs Keywords: QCD, Data analysis, Monte Carlo simulations Research Unit : DPhN / LQGP The Quark-Gluon Plasma (QGP) is an exotic state of matter created under extreme conditions at the LHC at CERN. It is one of the first stages of matter after the Big Bang. The internship will…

Read more: Quark Gluon Plasma equation of state
Tracking algorithm development in heavy-ion collisions for the futur Upstream Tracker of the LHCb collaboration.

Stage M2

Saclay

05/31/2024

03/01/2024

Domain, Specialties : Physique nucléaire Research Unit : DPhN / LQGP The internship project is todevelop and study the tracking performance of the future UT.To achieve this goal, the chosen student will use a C++ framework developed by the lQGP group at CEA, to develop and test new tracking algorithms for the different scenarios envisaged…

Read more: Tracking algorithm development in heavy-ion collisions for the futur Upstream Tracker of the LHCb collaboration.
CMOS chip response characterization for the future Upstream Tracker of the LHCb collaboration.

Stage M2

Saclay

05/31/2024

03/01/2024

Domain, Specialties : Physique nucléaire Research Unit : DPhN / LQGP The internship project is tostudy and characterize the response function of the chip.To achieve this goal, the chosen student will learn to use a GEANT4 simulation reproducing the experimental setup used during the beam tests made at CERN. The student will then test and…

Read more: CMOS chip response characterization for the future Upstream Tracker of the LHCb collaboration.

PhD thesis

Preequilibrium dilepton production in Oxygen – Oxygen collisions with LHCb

LQGP : Nuclear physics

Paris-Saclay PHENIICS (PHENIICS) Saclay

At the Large Hadron Collider (LHC) at Geneva, collisions of nuclei are used to create a thermodynamic system described by fluid dynamics under extreme conditions of temperature and energy density.…

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An event generator for hard probes of the preequilibrium stages of ion collisions at the LHC

LQGP : Nuclear physics

Paris-Saclay PHENIICS (PHENIICS) Saclay

At the Large Hadron Collider (LHC) at Geneva, collisions of nuclei are used to create a thermodynamic system described by fluid dynamics under extreme conditions of temperature and energy density.…

Read more
MEASUREMENT OF PROMPT AND NON-PROMPT J/? PRODUCTION IN ION-ION COLLISIONS AT THE LHC: NUCLEAR MODIFICATION FACTOR AND ELLIPTIC FLOW

LQGP : Particle physics

Paris-Saclay PHENIICS (PHENIICS) Saclay

A few microseconds after the Big Bang, the Universe was filled with a quark-gluon plasma (QGP), a hot and dense state of matter described by Quantum Chromodynamics, the theory of the strong…

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FOUNDATION MODEL FOR THE LHCB EXPERIMENT AT CERN

LQGP : Particle physics

Paris-Saclay PHENIICS (PHENIICS) Saclay

At CERN, the LHCb experiment sees protons collide tens of millions of times per second and must decide, in real time, which collisions to keep. Today this is done by thousands of small programs,…

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