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The Physics of Glueballs

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TLDR
In this article, a review of recent results in the physics of glueballs with the aim set on phenomenology and discuss the possibility of finding them in conventional hadronic experiments and in the Quark Gluon Plasma.
Abstract
Glueballs are particles whose valence degrees of freedom are gluons and therefore in their description the gauge field plays a dominant role. We review recent results in the physics of glueballs with the aim set on phenomenology and discuss the possibility of finding them in conventional hadronic experiments and in the Quark Gluon Plasma. In order to describe their properties we resort to a variety of theoretical treatments which include, lattice QCD, constituent models, AdS/QCD methods, and QCD sum rules. The review is supposed to be an informed guide to the literature. Therefore, we do not discuss in detail technical developments but refer the reader to the appropriate references.

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Multiquark Resonances

TL;DR: In this article, the authors review the theoretical understanding of this sector of particle physics phenomenology and present some considerations attempting a coherent description of the so called X and Z resonances.
Journal ArticleDOI

QCD and strongly coupled gauge theories: challenges and perspectives

Nora Brambilla, +53 more
TL;DR: In this paper, the progress, current status, and open challenges of QCD-driven physics, in theory and in experiment, are highlighted, highlighting how the strong interaction is intimately connected to a broad sweep of physical problems, in settings ranging from astrophysics and cosmology to strongly coupled, complex systems in particle and condensed-matter physics, as well as searches for physics beyond the Standard Model.
Journal ArticleDOI

The Status of Glueballs

TL;DR: In this paper, symmetry relations for decay rates of C = +1 heavy quark states like χc or χb were explored for scalar meson nonets.
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Light Hadron Masses from Lattice QCD

TL;DR: An overview of different formulations of lattice QCD with discussion on the fermion doubling problem and improvement programs is given in this paper, where the spectrum results for ground state hadrons and resonances are summarized.
Journal ArticleDOI

Gauge bosons at zero and finite temperature

TL;DR: In this article, a generalization of the perturbative Landau gauge has been proposed for non-Abelian Yang-Mills theories and its implementation is discussed for two example methods, lattice gauge theory and the quantum equations of motion.
References
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Journal ArticleDOI

Anti-de Sitter Space, Thermal Phase Transition, And Confinement in Gauge Theories

TL;DR: The correspondence between supergravity and string theory on AdS space and boundary conformal eld theory relates the thermodynamics of N = 4 super Yang-Mills theory in four dimensions to the thermodynamic properties of Schwarzschild black holes in Anti-de Sitter space as mentioned in this paper.
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Confinement of Quarks

TL;DR: In this paper, it is shown how to quantize a gauge field theory on a discrete lattice in Euclidean space-time, preserving exact gauge invariance and treating the gauge fields as angular variables.
Journal ArticleDOI

Ultraviolet Behavior of Non-Abelian Gauge Theories

TL;DR: In this paper, it was shown that a wide class of non-Abelian gauge theories have, up to calculable logarithmic corrections, free-field-theory asymptotic behavior.
Journal ArticleDOI

Reliable Perturbative Results for Strong Interactions

TL;DR: In this article, the authors show that perturbation theory is arbitrarily good for the deep Euclidean Green's functions of any Yang-Mills theory and of many Yang Mills theories with fermions.
Journal ArticleDOI

New extended model of hadrons

TL;DR: In this article, a strongly interacting particle is a finite region of space to which fields are confined, and the confinement is accomplished in a Lorentz-invariant way by endowing the finite region with a constant energy per unit volume, $B$.
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