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Modified instanton profile effects from lattice Green functions

 

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Opened Access Modified instanton profile effects from lattice Green functions
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Author: Boucaud, Ph.
de Soto, F.
Le Yaouanc, A.
Leroy, J. P.
Micheli, J.
Pène, Olivier
Rodríguez Quintero, J.
Department: Universidad de Sevilla. Departamento de Física Atómica, Molecular y Nuclear
Date: 2004-12-01
Published in: Physical Review D - Particles, Fields, Gravitation and Cosmology, 70 (11), 114503-1-114503-16.
Document type: Article
Abstract: We trace here instantons through the analysis of pure Yang-Mills gluon Green functions in the Landau gauge for a window of IR momenta (0.4<k<0.9  GeV). We present lattice results that can be fitted only after substituting the Belavin-Polyakov-Shvarts-Tyupkin profile in the instanton-liquid model (ILM) by one based on the Diakonov and Petrov variational methods. This also leads us to gain information on the parameters of the ILM.
Cite: Boucaud, P., de Soto, F., Le Yaouanc, A., Leroy, J.P., Micheli, J., Pène, O. y Rodríguez Quintero, J. (2004). Modified instanton profile effects from lattice Green functions. Physical Review D - Particles, Fields, Gravitation and Cosmology, 70 (11), 114503-1-114503-16.
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URI: http://hdl.handle.net/11441/62483

DOI: 10.1103/PhysRevD.70.114503

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