scholarly journals Meson spectrum in SU(N) gauge theories with quarks in higher representations: A check of Casimir scaling hypothesis

2020 ◽  
Vol 17 ◽  
pp. 103057
Author(s):  
Fabien Buisseret ◽  
Claude Semay
Keyword(s):  
Gauge Theories ◽  
Meson Spectrum ◽  
Scaling Hypothesis

scholarly journals Sp(4) gauge theories and beyond the standard model physics

2022 ◽  
Vol 258 ◽  
pp. 08003
Author(s):  
Biagio Lucini ◽  
Ed Bennett ◽  
Jack Holligan ◽  
Deog Ki Hong ◽  
Ho Hsiao ◽  
...  
Keyword(s):  
Gauge Theories ◽  
Beyond The Standard Model ◽  
Dirac Fermions ◽  
Gauge Model ◽  
Meson Spectrum ◽  
Main Motivation ◽  
Preliminary Results ◽  
The Standard Model ◽  
Glueball Spectrum ◽  
Antisymmetric Representation

We review numerical results for models with gauge group Sp(2N), discussing the glueball spectrum in the large-N limit, the quenched meson spectrum of Sp(4) with Dirac fermions in the fundamental and in the antisymmetric representation and the Sp(4) gauge model with two dynamical Dirac flavours. We also present preliminary results for the meson spectrum in the Sp(4) gauge theory with two fundamental and three antisymmetric Dirac flavours. The main motivation of our programme is to test whether this latter model is viable as a realisation of Higgs compositeness via the pseudo Nambu Goldstone mechanism and at the same time can provide partial top compositeness. In this respect, we report and briefly discuss preliminary results for the mass of the composite baryon made with two fundamental and one antisymmetric fermion (chimera baryon), whose physical properties are highly constrained if partial top compositeness is at work. Our investigation shows that a fully non-perturbative study of Higgs compositeness and partial top compositeness in Sp(4) is within reach with our current lattice methodology.

scholarly journals HOLOGRAPHIC FLAVOR IN THEORIES WITH EIGHT SUPERCHARGES

2007 ◽  
Vol 22 (26) ◽  
pp. 4717-4796 ◽  
Author(s):  
DIEGO RODRÍGUEZ-GÓMEZ
Keyword(s):  
Gauge Theory ◽  
Phase Structure ◽  
Gauge Theories ◽  
Meson Spectrum ◽  
Yang Mills ◽  
Holographic Duals ◽  
Gauge Gravity ◽  
Gravity Duality ◽  
Gravity Duals

We review the holographic duals of gauge theories with eight supercharges obtained by adding very few flavors to pure supersymmetric Yang–Mills with 16 supercharges. Assuming a brane-probe limit, the gravity duals are engineered in terms of probe branes (the so-called flavor brane) in the background of the color branes. Both types of branes intersect on a given subspace in which the matter is confined. The gauge theory dual is thus the corresponding flavoring of the gauge theory with 16 supercharges. Those theories have in general a nontrivial phase structure; which is also captured in a beautiful way by the gravity dual. Along the lines of the gauge/gravity duality, we review also some of the results on the meson spectrum in the different phases of the theories.

scholarly journals Topology, the meson spectrum and the scalar glueball: Three probes of conformality and the way it is lost

2017 ◽  
Vol 32 (36) ◽  
pp. 1747025
Author(s):  
E. Pallante
Keyword(s):  
Gauge Theories ◽  
Conformal Symmetry ◽  
Lower Edge ◽  
Meson Spectrum ◽  
Abelian Gauge ◽  
Scalar Glueball ◽  
Conformal Window ◽  
The Way

We discuss properties of non-Abelian gauge theories that change significantly across the lower edge of the conformal window. Their probes are the topological observables, the meson spectrum and the scalar glueball operator. The way these quantities change tells about the way conformal symmetry is lost.

scholarly journals The meson spectrum of large N gauge theories

2020 ◽  
Author(s):  
Antonio Gonzalez-Arroyo ◽  
Margarita Garcia Perez ◽  
Masanori Okawa
Keyword(s):  
Gauge Theories ◽  
Meson Spectrum ◽  
Large N

scholarly journals ADDING OPEN STRING MODES TO THE GAUGE/GRAVITY CORRESPONDENCE

2006 ◽  
Vol 21 (19) ◽  
pp. 1481-1494 ◽  
Author(s):  
ALFONSO V. RAMALLO
Keyword(s):  
Gauge Theories ◽  
Open String ◽  
Meson Spectrum ◽  
Fundamental Representation ◽  
Supersymmetric Gauge Theories ◽  
Supersymmetric Gauge ◽  
Gauge Gravity

We review some recent results on the extension of the gauge/gravity correspondence to include matter in the fundamental representation by adding D-branes to the supergravity backgrounds. Working in the quenched approximation, in which the D-branes are considered as probes, we show how to compute the meson spectrum for a general case of brane intersections which are dual to supersymmetric gauge theories with matter supermultiplets in several dimensions.

Geometry and Quantum Dynamics

2017 ◽  
Author(s):  
Laurent Baulieu ◽  
John Iliopoulos ◽  
Roland Sénéor
Keyword(s):  
General Relativity ◽  
Quantum Dynamics ◽  
Gauge Theories ◽  
Brst Symmetry ◽  
Abelian Gauge ◽  
Yang Mills ◽  
History Of ◽  
Brst Invariance

A geometrical derivation of Abelian and non- Abelian gauge theories. The Faddeev–Popov quantisation. BRST invariance and ghost fields. General discussion of BRST symmetry. Application to Yang–Mills theories and general relativity. A brief history of gauge theories.

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