About the Casimir scaling hypothesis

Details About the Casimir scaling hypothesis About the Casimir scaling hypothesis

2004-09-09

arxiv.org/abs/hep-ph/0409105v2

Eur.Phys.J. A22 (2004) 353-354

Physics

High Energy Physics

High Energy Physics - Phenomenology

Scientific paper

10.1140/epja/i2004-10097-5

A lattice calculation shows that the Casimir scaling hypothesis is well verified in QCD, that is to say that the potential between two opposite color charges in a color singlet is proportional to the value of the quadratic Casimir operator. On the other hand, in a bag model calculation for the same system, a scaling of the string tension with the square root of the quadratic Casimir operator is obtained. It is shown that, within the same formalism but with the assumption that the width of the string is independent of the color charges, the string tension is proportional to value of the quadratic Casimir operator. Some considerations about the color behavior of the total interaction are given.

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