185 citations · 521 across the 21 of their papers we have counts for
27 papers
Mathematical foundations and numerical simulations of BDNK hydrodynamics: from heavy-ion collisions to astrophysics
Teerthal Patel, Henry V. Hirvonen, Fábio S. Bemfica +3
We present new developments in the mathematical foundations and numerical simulations of the causal and stable first-order relativistic viscous hydrodynamic theory by Bemfica, Disc…
Relativistic viscous hydrodynamics in the Density Frame for heavy-ion collisions
Jean-François Paquet, Mayank Singh, Derek Teaney
We present a numerical study of relativistic viscous hydrodynamics in the Density Frame for boost-invariant flows in 2+1 dimensions. The Density Frame is a formulation of relativis…
Electromagnetic probes of concurrent minijet-hydrodynamics evolution
Soham Banerjee, Mayank Singh, Charles Gale +3
We investigate direct photon and dilepton production in a concurrent minijet-hydrodynamics framework that consistently incorporates event-by-event initial-state fluctuations and dy…
What happens in hydrodynamic simulations of heavy-ion collisions when causality is violated?
Lorenzo Gavassino, Henry Hirvonen, Jean-Francois Paquet +2
We summarize our recent investigations on how causality violations in Israel-Stewart-type relativistic viscous hydrodynamic simulations can give rise to both analytical and numeric…
Electromagnetic radiation from Quark-Gluon Plasma at finite baryon density
Xiang-Yu Wu, Charles Gale, Sangyong Jeon +3
Using the Bayesian calibrated iEBE-MUSIC framework, we compute the production of electromagnetic radiation from hot hadronic matter at finite baryon density. Results for thermal ph…
Feasibility of measuring the speed of sound of the quark-gluon plasma from the multiplicity and mean of ultracentral heavy-ion collisions
Lorenzo Gavassino, Henry Hirvonen, Jean-François Paquet +2
The mean transverse momentum of hadrons has been observed experimentally and in numerical simulations to have a power-law dependence on the hadronic multiplic…
Quark flavor equilibration of the quark-gluon plasma
Andrew Gordeev, Steffen A. Bass, Berndt Mueller +1
The early stage of a heavy-ion collision is marked by rapid entropy production and the transition from a gluon saturated initial condition to a plasma of quarks and gluons that evo…
Relativistic Viscous Hydrodynamics in the Density Frame: Numerical Tests and Comparisons
Jay Bhambure, Aleksas Mazeliauskas, Jean-Francois Paquet +4
We conduct a numerical study of relativistic viscous fluid dynamics in the Density Frame for one-dimensional fluid flows. The Density Frame is a formulation of relativistic viscous…
Applications of emulation and Bayesian methods in heavy-ion physics
Jean-François Paquet
Heavy-ion collisions provide a window into the properties of many-body systems of deconfined quarks and gluons. Understanding the collective properties of quarks and gluons is poss…
Additive Multi-Index Gaussian process modeling, with application to multi-physics surrogate modeling of the quark-gluon plasma
Kevin Li, Simon Mak, J. -F Paquet +1
The Quark-Gluon Plasma (QGP) is a unique phase of nuclear matter, theorized to have filled the Universe shortly after the Big Bang. A critical challenge in studying the QGP is that…
Thermal photon production in Gubser inviscid relativistic fluid dynamics
Jean-François Paquet
The Gubser solution to inviscid relativistic fluid dynamics is used to examine the role of transverse expansion on the energy spectrum of photons radiated by quark-gluon plasma. Tr…
Computational budget optimization for Bayesian parameter estimation in heavy ion collisions
Brandon Weiss, Jean-François Paquet, Steffen A. Bass
Bayesian parameter estimation provides a systematic approach to compare heavy ion collision models with measurements, leading to constraints on the properties of nuclear matter wit…
Conglomerate Multi-Fidelity Gaussian Process Modeling, with Application to Heavy-Ion Collisions
Yi Ji, Henry Shaowu Yuchi, Derek Soeder +5
In an era where scientific experimentation is often costly, multi-fidelity emulation provides a powerful tool for predictive scientific computing. While there has been notable work…
Electromagnetic measurement of the temperature of quark-gluon plasma produced in central ultrarelativistic nuclear collisions
Jean-François Paquet, Steffen A. Bass
Ultrarelativistic collisions of large nuclei produce a short-lived plasma of deconfined quarks and gluons. Of all the GeV-energy photons detected in these nuclear collisions, only…
A graphical multi-fidelity Gaussian process model, with application to emulation of heavy-ion collisions
Yi Ji, Simon Mak, Derek Soeder +2
With advances in scientific computing and mathematical modeling, complex scientific phenomena such as galaxy formations and rocket propulsion can now be reliably simulated. Such si…
Multi-messenger heavy-ion collision physics
Charles Gale, Jean-François Paquet, Björn Schenke +1
This work studies the production of direct photons in relativistic nuclear collisions, along with the production of hadrons. Radiation from the very first instants to the final mom…
Parton energy loss in a hard-soft factorized approach
Tianyu Dai, Jean-François Paquet, Derek Teaney +1
An energetic parton travelling through a quark-gluon plasma loses energy via occasional hard scatterings and frequent softer interactions. Whether or not these interactions admit a…
Effective viscosities in a hydrodynamically expanding boost-invariant QCD plasma
Jean-François Paquet, Steffen A. Bass
Background: The near-equilibrium properties of a QCD plasma can be encoded into transport coefficients such as bulk and shear viscosity. In QCD, the ratio of these transport coeffi…
Parton energy loss in the reformulated weakly-coupled kinetic approach
Tianyu Dai, Steffen A. Bass, Jean-François Paquet +1
Interactions between hard partons and the quark-gluon plasma range from frequent soft interactions to rare hard scatterings. The larger number of soft interactions makes possible a…
Effective kinetic description of event-by-event pre-equilibrium dynamics in high-energy heavy-ion collisions
Aleksi Kurkela, Aleksas Mazeliauskas, Jean-François Paquet +2
We develop a macroscopic description of the space-time evolution of the energy-momentum tensor during the pre-equilibrium stage of a high-energy heavy-ion collision. Based on a wea…
Effects of bulk viscosity and hadronic rescattering in heavy ion collisions at RHIC and LHC
Sangwook Ryu, Jean-François Paquet, Chun Shen +4
We describe ultra-relativistic heavy ion collisions at RHIC and the LHC with a hybrid model using the IP-Glasma model for the earliest stage and viscous hydrodynamics and microscop…
Probing the spacetime evolution of heavy ion collisions with photons and dileptons
Jean-François Paquet
Photons and dileptons are emitted throughout the evolution of the deconfined nuclear medium produced in heavy ion collisions. As such they can provide valuable information about th…
Electromagnetic probes of heavy ion collisions: recent developments
Jean-François Paquet
The current status of photon and dilepton emission in ultra-relativistic heavy ion collisions is reviewed, and recent developments are highlighted. The importance of emissions at e…
Heavy ions at the Future Circular Collider
A. Dainese, U. A. Wiedemann, N. Armesto +60
The Future Circular Collider (FCC) Study is aimed at assessing the physics potential and the technical feasibility of a new collider with centre-of-mass energies, in the hadron-had…