Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2006-05-24
Phys.Rev.D75:034008,2007
Physics
High Energy Physics
High Energy Physics - Phenomenology
Substantial revision with improved analysis and discussion
Scientific paper
10.1103/PhysRevD.75.034008
The Interacting Instanton Liquid Model is used to explore the role of instanton induced dynamics in hadron structure. To support the validity of this model in the chiral regime, the quark mass dependencies of several properties are shown to agree with chiral perturbation theory, including the density of eigenmodes of the Dirac operator and the masses of the pion and nucleon. A quark mass m* = 80 MeV emerging naturally from the model is shown to specify the mass scale above which the fermion determinant is suppressed, the zero modes become subdominant, and the density of quasi-zero modes become independent of the quark mass.
Cristoforetti Marco
Faccioli Pietro
Negele John W.
Traini M. C.
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