Confining Forces and String Formation from the Lattice

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We show the running coupling as derived from the SU(3) QQ potential and discuss preliminary results on spin dependent heavy quark potentials from high statistics lattice simulations of SU(2) gauge theory. The precision suffices to study scaling properties and lattice artifacts (at short distances). We identify the Coulomb like short range interaction as a mixed vector-scalar exchange. We measure flux tube formation between a static QQ pair over physical distances up to 2 fm, with a spatial resolution as small as .05 fm. Consistency with the string picture is found for separation larger than about 1 fm, with a half width of the profile of approximately .7 fm.
uucompressed postscript, 6 pages, Wuppertal preprint WUB 94-32, HLRZ preprint HLRZ-94-41

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High Energy Physics - Lattice

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http://salesiana.dossiersoluciones.com/handle/123456789/38951

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/hep-lat/9410002
 http://arxiv.org/abs/hep-lat/9410002

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arXiv