Casimir meets Poisson: improved quark/gluon discrimination with counting observables
Sign Up to like & getrecommendations! Published in 2017 at "Journal of High Energy Physics"
DOI: 10.1007/jhep09(2017)083
Abstract: A bstractCharged track multiplicity is among the most powerful observables for discriminating quark- from gluon-initiated jets. Despite its utility, it is not infrared and collinear (IRC) safe, so perturbative calculations are limited to studying the… read more here.
Keywords: multiplicity; quark gluon; discrimination; jet ... See more keywords
Classical local SU(3) gauge invariance in Weyl 2-spinor language and quark–gluon plasma equations of motion
Sign Up to like & getrecommendations! Published in 2017 at "Results in physics"
DOI: 10.1016/j.rinp.2017.02.035
Abstract: Abstract In a new classical Weyl 2-spinor approach to non abelian gauge theories, starting with the U(1) gauge group in a previous work, we study now the SU(3) case corresponding to quarks (antiquarks) interacting with… read more here.
Keywords: gluon plasma; weyl spinor; quark gluon; gauge ... See more keywords
Charm quark dynamics in quark-gluon plasma with 3 + 1D viscous hydrodynamics
Sign Up to like & getrecommendations! Published in 2020 at "Physical Review C"
DOI: 10.1103/physrevc.102.044907
Abstract: The drag and diffusion coefficients are studied within the framework of Fokker-Planck dynamics for the case of a charm quark propagating in an expanding quark-gluon plasma. The space-time evolution of the nuclear matter created in… read more here.
Keywords: charm quark; quark gluon; gluon plasma; hydrodynamics ... See more keywords
Momentum broadening in unstable quark-gluon plasma
Sign Up to like & getrecommendations! Published in 2017 at "Physical Review C"
DOI: 10.1103/physrevc.95.024906
Abstract: Quark-gluon plasma produced at the early stage of ultrarelativistic heavy ion collisions is unstable, if weakly coupled, due to the anisotropy of its momentum distribution. Chromomagnetic fields are spontaneously generated and can reach magnitudes much… read more here.
Keywords: test parton; quark gluon; gluon plasma; momentum broadening ... See more keywords
Gluo-dissociation of heavy quarkonium in the quark-gluon plasma reexamined
Sign Up to like & getrecommendations! Published in 2017 at "Physical Review C"
DOI: 10.1103/physrevc.96.034901
Abstract: Using an effective Hamiltonian derived from the QCD multipole expansion, we calculate the cross sections of gluo-dissociation of heavy quarkonia in the quark-gluon plasma, by including both the chromo-electric dipole ($E_1$) as well as the… read more here.
Keywords: dissociation heavy; quark gluon; dissociation; gluo dissociation ... See more keywords
Anisotropic-hydrodynamics approach to a quark-gluon fluid mixture
Sign Up to like & getrecommendations! Published in 2017 at "Physical Review C"
DOI: 10.1103/physrevc.97.014904
Abstract: Anisotropic-hydrodynamics framework is used to describe a mixture of quark and gluon fluids. The effects of quantum statistics, finite quark mass, and finite baryon number density are taken into account. The results of anisotropic hydrodynamics… read more here.
Keywords: quark gluon; hydrodynamics; hydrodynamics approach; mixture ... See more keywords
T -matrix approach to quark-gluon plasma
Sign Up to like & getrecommendations! Published in 2017 at "Physical Review C"
DOI: 10.1103/physrevc.97.034918
Abstract: A selfconsistent thermodynamic $T$-matrix approach is deployed to study the microscopic properties of the quark-gluon plasma (QGP), encompassing both light- and heavy-parton degrees of freedom in a unified framework. The starting point is a relativistic… read more here.
Keywords: quark gluon; gluon plasma; matrix; matrix approach ... See more keywords
Probing the transport properties of quark-gluon plasma via heavy-flavor Boltzmann and Langevin dynamics
Sign Up to like & getrecommendations! Published in 2019 at "Physical Review C"
DOI: 10.1103/physrevc.99.054909
Abstract: The heavy quark propagation behavior inside the quark-gluon plasma (QGP), is usually described in terms of the Boltzmann dynamics, which can be reduced to the Langevin approach by assuming a small momentum transfer for the… read more here.
Keywords: boltzmann langevin; transport; gluon plasma; langevin dynamics ... See more keywords
Quark and gluon form factors to four-loop order in QCD: The Nf3 contributions
Sign Up to like & getrecommendations! Published in 2017 at "Physical Review D"
DOI: 10.1103/physrevd.95.034030
Abstract: We calculate the four-loop massless QCD corrections with three closed quark lines to quark and gluon form factors. We apply a novel integration by parts algorithm based on modular arithmetic and compute all relevant master… read more here.
Keywords: four loop; order qcd; quark gluon; form factors ... See more keywords
Quark-gluon Vertex: A Perturbation Theory Primer and Beyond
Sign Up to like & getrecommendations! Published in 2017 at "Physical Review D"
DOI: 10.1103/physrevd.95.034041
Abstract: There has been growing evidence that the infrared enhancement of the form factors defining the full quark-gluon vertex plays an important role in realizing a dynamical breakdown of chiral symmetry in quantum chromodynamics, leading to… read more here.
Keywords: form factors; vertex perturbation; quark gluon; gluon vertex ... See more keywords
Bulk Viscosity of Quark-Gluon Plasma in Strong Magnetic Fields
Sign Up to like & getrecommendations! Published in 2017 at "Physical Review D"
DOI: 10.1103/physrevd.96.094009
Abstract: We investigate the viscosities of the quark-gluon plasma in strong magnetic fields within the leading-log and lowest Landau level (LLL) approximations. We first show that the bulk viscosity in the direction parallel to the magnetic… read more here.
Keywords: quark gluon; viscosity; gluon plasma; plasma strong ... See more keywords