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arXiv · hep-th/0507195

Attractive Casimir effect in an infrared modified gluon bag model

L. E. Oxman·N. F. Svaiter·R. L. P. G. Amaral
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Abstract

In this work, we are motivated by previous attempts to derive the vacuum contribution to the bag energy in terms of familiar Casimir energy calculations for spherical geometries. A simple infrared modified model is introduced which allows studying the effects of the analytic structure as well as the geometry in a clear manner. In this context, we show that if a class of infrared vanishing effective gluon propagators is considered, then the renormalized vacuum energy for a spherical bag is attractive, as required by the bag model to adjust hadron spectroscopy.

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L. E. Oxman, N. F. Svaiter, R. L. P. G. Amaral. 2005-12-14. Attractive Casimir effect in an infrared modified gluon bag model. https://doi.org/10.1103/physrevd.72.125007

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