Crystalline-instanton-liquid model of QCD vacuum and its implication on chiral and deconfinement transitions

1990 ◽  
Vol 41 (12) ◽  
pp. 3861-3864
Author(s):  
Zhou Xiaoan
Keyword(s):  
Qcd Vacuum ◽  
Liquid Model ◽  
Instanton Liquid

scholarly journals Gluons, Heavy and Light Quarks in the QCD Vacuum

2018 ◽  
Vol 182 ◽  
pp. 02092 ◽  
Author(s):  
Mirzayusuf Musakhanov
Keyword(s):  
Interaction Strength ◽  
Packing Fraction ◽  
Heavy Quarks ◽  
Gluon Mass ◽  
Qcd Vacuum ◽  
Instanton Contribution ◽  
Liquid Model ◽  
Dynamical Quark Mass ◽  
Instanton Liquid ◽  
Dynamical Quark

We are discussing the properties of the QCD vacuum which might be important especially for the understanding of hadrons with small quark core size ~ 0:3 fm: We assume that at these distances the QCD vacuum can be described by the Instanton Liquid Model (ILM). At larger distances, where confinement is important, ILM should be extended to Dyons Liquid Model (DLM). The ILM has only two free parameters, average instanton size ρ ≈ 0:3 fm and average inter-instanton distance R ≈ 1 fm, and can successfully describe the key features of light hadron physics. One of the important conceptual results was prediction of the momentum dependent dynamical quark mass M ~ (packing f raction)1/2 ρ-1 ≈ 360 MeV, later confirmed numerically by evaluations in the lattice. The estimates show that gluon-instanton interaction strength is also big and is controlled by the value of dynamical gluon mass Mg ≈ M. Heavy quarks interact with instantons much weaker. The heavy quark-instanton interaction strength is given by ΔmQ ~ packing fraction ρ-1 ≈ 70 MeV: Nevertheless, the direct instanton contribution to the colorless heavy-heavy quarks potential is sizable and must be taken into account. At small distances, where one-gluon exchange contribution to this potential is dominated, we have to take into account dynamical gluon mass Mg. Also, instantons are generating light-heavy quarks interactions and allow to describe the nonperturbative effects in heavy-light quarks systems.

scholarly journals Local chirality of low-lying Dirac eigenmodes and the instanton liquid model

2002 ◽  
Vol 66 (3) ◽  
Author(s):  
I. Horváth ◽  
S. J. Dong ◽  
T. Draper ◽  
N. Isgur ◽  
F. X. Lee ◽  
...  
Keyword(s):  
Liquid Model ◽  
Instanton Liquid

scholarly journals Heavy quarkonium potential at nonzero temperature in the instanton liquid model

2019 ◽  
Vol 49 ◽  
pp. 1960003
Author(s):  
M. M. Musakhanov ◽  
N. R. Rakhimov
Keyword(s):  
Heavy Quark ◽  
Finite Temperature ◽  
Mass Formula ◽  
Heavy Quarkonium ◽  
Nonzero Temperature ◽  
Exchange Contribution ◽  
Gluon Exchange ◽  
Liquid Model ◽  
Instanton Liquid

Within the framework of the instanton Liquid Model (ILM) we evaluate the heavy quark [Formula: see text] potential at finite temperature. The potential in the ILM has two components: direct instantons contribution and the ILM modified one-gluon exchange contribution. The dynamical ”electric” mass [Formula: see text], which was generated by rescattering of the gluons from the ILM instantons, was taken into account.

scholarly journals Pseudoscalars in the instanton liquid model

1989 ◽  
Vol 233 (1-2) ◽  
pp. 205-209 ◽  
Author(s):  
R. Alkofer ◽  
M.A. Nowak ◽  
J.J.M. Verbaarschot ◽  
I. Zahed
Keyword(s):  
Liquid Model ◽  
Instanton Liquid

scholarly journals Exploring the chiral regime of QCD in the interacting instanton liquid model

2007 ◽  
Vol 75 (3) ◽  
Author(s):  
M. Cristoforetti ◽  
P. Faccioli ◽  
M. C. Traini ◽  
J. W. Negele
Keyword(s):  
Liquid Model ◽  
Instanton Liquid

A quantum liquid model for the QCD vacuum

1979 ◽  
Vol 160 (2) ◽  
pp. 380-396 ◽  
Author(s):  
H.B. Nielsen ◽  
P. Olesen
Keyword(s):  
Quantum Liquid ◽  
Qcd Vacuum ◽  
Liquid Model
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