Results 1 to 10 of about 713,508 (245)

Holographic correlation functions at finite density and/or finite temperature

open access: yesJournal of High Energy Physics, 2022
We calculate holographically one and two-point functions of scalar operators at finite density and/or finite temperature. In the case of finite density and zero temperature we argue that only scalar operators can have non-zero VEVs.
George Georgiou, Dimitrios Zoakos
doaj   +5 more sources

Lattice QCD at finite isospin density and/or temperature [PDF]

open access: yesNuclear Physics B - Proceedings Supplements, 2004
We simulate two-flavour lattice QCD with at a finite chemical potential $ _I$ for isospin, and finite temperature. At small $ _I$, we determine the position of the crossover from hadronic matter to a quark-gluon plasma as a function of $ _I$. At larger $ _I$ we observe the phase transition from the superfluid pion-condensed phase to a quark-gluon ...
Kogut, J. B., Sinclair, D. K.
openaire   +5 more sources

Runaway relaxion from finite density

open access: yesJournal of High Energy Physics, 2022
Finite density effects can destabilize the metastable vacua in relaxion models. Focusing on stars as nucleation seeds, we derive the conditions that lead to the formation and runaway of a relaxion bubble of a lower energy minimum than in vacuum.
Reuven Balkin   +4 more
doaj   +1 more source

Is the UA(1) symmetry restored at finite temperature or density? [PDF]

open access: yesAIP Conference Proceedings, 2005
We investigate the full U(3)$\otimes$U(3) chiral symmetry restoration, at finite temperature and density, on the basis of the three flavor Nambu-Jona-Lasinio model with the anomaly term given by the 't Hooft interaction. We implement a temperature (density) dependence of the anomaly coefficient motivated by lattice results for the topological ...
Costa, Pedro   +3 more
openaire   +2 more sources

The LPM effect in sequential bremsstrahlung: 1/ N c 2 $$ {\mathrm{N}}_{\mathrm{c}}^2 $$ corrections

open access: yesJournal of High Energy Physics, 2022
An important question concerning in-medium high-energy parton showers in a quark-gluon plasma or other QCD medium is whether consecutive splittings of the partons in a given shower can be treated as quantum mechanically independent, or whether the ...
Peter Arnold, Omar Elgedawy
doaj   +1 more source

The LPM effect in sequential bremsstrahlung: incorporation of “instantaneous” interactions for QCD

open access: yesJournal of High Energy Physics, 2022
The splitting processes of bremsstrahlung and pair production in a medium are coherent over large distances in the very high energy limit, which leads to a suppression known as the Landau-Pomeranchuk-Migdal (LPM) effect.
Peter Arnold, Tyler Gorda, Shahin Iqbal
doaj   +1 more source

Scaling and adiabaticity in a rapidly expanding gluon plasma

open access: yesJournal of High Energy Physics, 2022
In this work we aim to gain qualitative insight on the far-from-equilibrium behavior of the gluon plasma produced in the early stages of a heavy-ion collision.
Jasmine Brewer   +2 more
doaj   +1 more source

Electromagnetic radiation at extreme angular velocity

open access: yesJournal of High Energy Physics, 2023
We consider a system rotating at extremely high angular velocity, so that its matter is found mostly at the light-cylinder. We posit that it can be described by quantum fields confined to the two-dimensional cylindrical surface rotating about its ...
Matteo Buzzegoli, Kirill Tuchin
doaj   +1 more source

Far-from-equilibrium attractors for massive kinetic theory in the relaxation time approximation

open access: yesJournal of High Energy Physics, 2022
We investigate whether early and late time attractors for non-conformal kinetic theories exist by computing the time-evolution of a large set of moments of the one-particle distribution function.
H. Alalawi, M. Strickland
doaj   +1 more source

Shear induced polarization: collisional contributions

open access: yesJournal of High Energy Physics, 2022
It has been realized that thermal shear plays a similar role as thermal vorticity in polarizing spin of particles in heavy ion collisions. We point out that shear has a funda- mental difference that it leads to particle redistribution in the medium.
Shu Lin, Ziyue Wang
doaj   +1 more source

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