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The strong coupling constant at small momentum as an instanton detector

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The strong coupling constant at small momentum as an instanton detector.pdf (160.9Kb)
URI
http://hdl.handle.net/10433/1010
DOI
https://dx.doi.org/10.1088/1126-6708/2003/04/005
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Authorship
De Soto, Feliciano; Boucaud, P.; Le Yaouanc, A.; Leroy, J. P.; Micheli, J.; [et al.]
Palabras clave
Lattice Gauge field theories
Confinement
Solitons monopoles and instantons
Lattice QCD
Publication date
2003
Abstract
We present a study of ¿MOM(p) at small p computed from the lattice in the quenched approximation (nf = 0). It shows a dramatic proptop4 law which can be understood within an instanton liquid model. In this framework the prefactor gives a direct measure of the instanton density in thermalised configurations. A preliminary result for this density is 5.27(4) fm¿4.
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  • DSFQN - Artículos de revistas [67]

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