scholarly journals On the role of dynamical quark mass generation in chiral symmetry breaking in QCD

2016 ◽  
Vol 270-272 ◽  
pp. 93-97
Author(s):  
H. Sazdjian
2021 ◽  
Vol 36 (21) ◽  
pp. 2130012
Author(s):  
Michael Creutz

Quantum chromodynamics (QCD), the theory of the strong interactions, involves quarks interacting with non-Abelian gluon fields. This theory has many features that are difficult to impossible to see in conventional diagrammatic perturbation theory. This includes quark confinement, mass generation and chiral symmetry breaking. This paper is a colloquium level overview of the framework for understanding how these effects come about.


Author(s):  
Orlando Oliveira ◽  
Paulo J. Silva

Abstract The quark propagator at finite temperature is investigated using quenched gauge configurations. The propagator form factors are investigated for temperatures above and below the gluon deconfinement temperature $$T_c$$Tc and for the various Matsubara frequencies. Significant differences between the functional behaviour below and above $$T_c$$Tc are observed both for the quark wave function and the running quark mass. The results for the running quark mass indicate a link between gluon dynamics, the mechanism for chiral symmetry breaking and the deconfinement mechanism. For temperatures above $$T_c$$Tc and for low momenta, our results support also a description of quarks as free quasiparticles.


Chirality ◽  
2003 ◽  
Vol 15 (3) ◽  
pp. 238-241 ◽  
Author(s):  
Kouichi Asakura ◽  
Masato Hayashi ◽  
Shuichi Osanai

1996 ◽  
Vol 11 (12) ◽  
pp. 1001-1009 ◽  
Author(s):  
HIROFUMI YAMADA

We propose the use of Heaviside transform with respect to the quark mass to investigate dynamical aspects of QCD. We show that at large momentum transfer the transformed propagator of massive quarks behaves softly and thus the dominant effect of explicit chiral symmetry breaking disappears through Heaviside transform. This suggests that it is more convenient to do massless approximation in the transformed quantity than in the original one. As an example of explicit approximation, we estimate the massless value of the quark condensate.


2000 ◽  
Vol 84 (19) ◽  
pp. 4405-4408 ◽  
Author(s):  
T. Buhse ◽  
D. Durand ◽  
D. Kondepudi ◽  
J. Laudadio ◽  
S. Spilker

2022 ◽  
Vol 2022 (01) ◽  
pp. 005
Author(s):  
Mayumi Aoki ◽  
Jisuke Kubo ◽  
Jinbo Yang

Abstract Dynamical chiral symmetry breaking in a QCD-like hidden sector is used to generate the Planck mass and the electroweak scale including the heavy right-handed neutrino mass. A real scalar field transmits the energy scale of the hidden sector to the visible sectors, playing besides a role of inflaton in the early Universe while realizing a Higgs-inflation-like model. Our dark matter candidates are hidden pions that raise due to dynamical chiral symmetry breaking. They are produced from the decay of inflaton. Unfortunately, it will be impossible to directly detect them, because they are super heavy (109 ∼ 12 GeV), and moreover the interaction with the visible sector is extremely suppressed.


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