9 papers · 1 filter
Hot QCD: transport coefficients in strong and weak coupling regimes
Gabriele Parisi
We evaluate the transport coefficients, namely the shear viscosity and the spatial diffusion coefficient of heavy quarks , within a Quasi-Particle Model (QPM). In particul…
Bulk viscosity of a binary mixture: the role of the intra-species interaction
Gabriele Parisi, Vincenzo Nugara, Shams Ul Arfeen +2
The bulk viscosity is a transport coefficient which is of central importance for various areas of modern physics. In particular, its determination for a mixture of more than on…
Heavy Quarks in the initial stages of Proton-Ion Collisions
Gabriele Parisi
Collisions among heavy ions, like Pb or Au, are a great tool to study the theory of strong interactions, that is Quantum Chromodynamics (QCD). In particular, these experiments are…
Elliptic flow of charm quarks produced in the early stage of pA collisions
Gabriele Parisi, Fabrizio Murgana, Vincenzo Greco +1
We investigate the build-up of elliptic flow of charm quarks produced in the early pre-equilibrium stage of high-energy proton--nucleus collisions. The initial stage is modeled wit…
Shear viscosity of a binary mixture for a relativistic fluid at high temperature
Gabriele Parisi, Vincenzo Nugara, Salvatore Plumari +1
The determination of the shear viscosity is a central topic in various areas of modern physics. In particular, it is often necessary to evaluate the shear viscosity of fluids m…
Entropy from decoherence: a case study using glasma-based occupation numbers
Gabriele Coci, Gabriele Parisi, Salvatore Plumari +1
We compute the entropy-per-particle, , produced by the decoherence of a coherent state interacting with an environment, using an analytical open quantum system approach. The c…
Anisotropic fluctuations of momentum and angular momentum of heavy quarks in the pre-equilibrium stage of pA collisions at the LHC
Gabriele Parisi, Vincenzo Greco, Marco Ruggieri
We simulate the real-time evolution of the -glasma generated in the early stages of high-energy proton-nucleus collisions, employing classical lattice gauge theory technique…
Melting of and pairs in the pre-equilibrium stage of proton-nucleus collisions at the Large Hadron Collider
Lucia Oliva, Gabriele Parisi, Vincenzo Greco +1
We study the melting of and pairs in the early stage of high-energy proton-nucleus collisions. We describe the early stage in terms of an evolving glasm…
Quasi particle model vs lattice QCD thermodynamics: extension to flavors and momentum dependent quark masses
Maria Lucia Sambataro, Vincenzo Greco, Gabriele Parisi +1
In the last decade a Quasi-Particle Model () has supplied the basis for the study of HQ production in ultra-relativistic AA collisions, allowing for a phenomenological estimat…