42 citations · 123 across the 15 of their papers we have counts for
17 papers
Investigation of evaluated nuclear data in the prediction of inherent neutron sources
Sigtryggur Hauksson, Ilaria Casalbore, Daniele Tomatis +1
Quantifying inherent neutron sources in matter, particularly reactions and spontaneous fission, is important in nuclear engineering and other fields. The SOURCES code is a…
Jet quenching in the glasma phase: medium-induced radiation
João Barata, Sigtryggur Hauksson, Xoán Mayo López +1
Inspired by the recent considerations of parton momentum broadening in the glasma phase, we study the medium-induced soft gluon radiation of jet partons at early times in heavy-ion…
Isotropization of a longitudinally expanding system of scalar fields in the 2PI formalism
François Gelis, Sigtryggur Hauksson
Motivated by isotropization of QCD matter in the initial stages of heavy-ion collisions, we consider a system of scalar fields that undergoes a boost invariant longitudinal expansi…
TMD factorisation for diffractive jets in photon-nucleus interactions
S. Hauksson, E. Iancu, A. H. Mueller +2
Using the colour dipole picture and the colour glass condensate effective theory, we study the diffractive production of two or three jets via coherent photon-nucleus interactions…
Study of a longitudinally expanding plasma with the 2PI effective action
François Gelis, Sigtryggur Hauksson
A central question in heavy-ion collisions is how the initial far-from-equilibrium medium evolves and thermalizes while it undergoes a rapid longitudinal expansion. In this work we…
Polarized Photons from the Early Stages of Relativistic Heavy-Ion Collisions
Sigtryggur Hauksson, Charles Gale
The polarization of real photons emitted from early-time heavy-ion collisions is calculated, concentrating on the contribution from bremsstrahlung and quark-antiquark annihilation…
Jet polarisation in an anisotropic medium
Sigtryggur Hauksson, Edmond Iancu
We study the evolution of an energetic jet which propagates in an anisotropic quark-gluon plasma, as created in the intermediate stages of ultrarelativistic heavy-ion collisions. W…
The momentum broadening of energetic partons in an anisotropic plasma
Sigtryggur Hauksson, Sangyong Jeon, Charles Gale
The quark-gluon plasma produced in heavy-ion collisions is anisotropic throughout its evolution. This anisotropy changes the physics of jet-medium interaction, making it dependent…
Probes of the quark-gluon plasma and plasma instabilities
Sigtryggur Hauksson, Sangyong Jeon, Charles Gale
Penetrating probes in heavy-ion collisions, like jets and photons, are sensitive to the transport coefficients of the produced quark-gluon plasma, such as shear and bulk viscosity.…
Effects of the mean field on fluid dynamics in the relaxation time approximation
Alina Czajka, Sigtryggur Hauksson, Chun Shen +2
In this paper the nonequilibrium correction to the distribution function containing a time and space dependent mass is obtained. Given that, fully consistent fluid dynamic equation…
Hard probes of non-equilibrium quark-gluon plasma
Sigtryggur Hauksson, Sangyong Jeon, Charles Gale
Jets and photons could play an important role in finding the transport coefficients of the quark-gluon plasma. To this end we analyze their interaction with a non-equilibrium quark…
Jets in non-equilibrium quark-gluon plasma
Sigtryggur Hauksson, Sangyong Jeon, Charles Gale
Jets are a promising way to probe the non-equilibrium physics of quark-gluon plasma (QGP). We study how an out-of-equilibrium medium induces a jet particle to emit gluons. Evaluati…
Penetrating probes: Jets and photons in a non-equilibrium quark-gluon plasma
Sigtryggur Hauksson, Sangyong Jeon, Charles Gale
We employ new field-theoretical tools to study photons and jets in a non-equilibrium quark-gluon plasma. Jet broadening and photon emission takes place through radiation which is s…
Bulk viscosity of strongly interacting matter in the relaxation time approximation
Alina Czajka, Sigtryggur Hauksson, Chun Shen +2
This paper presents how thermal mean field effects are incorporated consistently in the hydrodynamical modelling of heavy-ion collisions. The nonequilibrium correction to the distr…
Photon emission from quark-gluon plasma out of equilibrium
Sigtryggur Hauksson, Sangyong Jeon, Charles Gale
The photon emission from a non-equilibrium quark-gluon plasma (QGP) is analyzed. We derive an integral equation that describes photon production through quark-antiquark annihilatio…
Bulk viscous corrections to photon production in the quark-gluon plasma
Sigtryggur Hauksson, Chun Shen, Sangyong Jeon +1
Photons radiated in heavy-ion collisions are a penetrating probe, and as such can play an important role in the determination of the quark-gluon plasma (QGP) transport coefficients…
Excitation of radial collective modes in a quantum dot: Beyond linear response
Vidar Gudmundsson, Sigtryggur Hauksson, Arni Johnsen +4
We compare the response of five different models of two interacting electrons in a quantum dot to an external short lived radial excitation that is strong enough to excite the syst…