Attractive Casimir effect in an infrared modified gluon bag model

Details Attractive Casimir effect in an infrared modified gluon bag model Attractive Casimir effect in an infrared modified gluon bag model

2005-07-20

arxiv.org/abs/hep-th/0507195v2

Phys.Rev. D72 (2005) 125007

Physics

High Energy Physics

High Energy Physics - Theory

7 pages. 1 figure. Accepted for publication in Physical Review D. Revised version with improved analysis and presentation, ref

Scientific paper

10.1103/PhysRevD.72.125007

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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