Attractive Casimir effect in an infrared modified gluon bag model

Journal Article · Thu Dec 15 00:00:00 EST 2005 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PhysRevD.72.125007· OSTI ID:20774549

Oxman, L E; Amaral, R L.P.G. ^[1]; Svaiter, N F ^[2]

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1. Instituto de Fisica, Universidade Federal Fluminense, Avenida Litoranea S/N, Boa Viagem, Niteroi, RJ 24210-340 (Brazil)
2. Centro Brasileiro de Pesquisas Fisicas - CBPF, Rua Doutor Xavier Sigaud 150, Rio de Janeiro, RJ 22290-180 (Brazil)

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.

• OSTI ID: 20774549
• Journal Information: Physical Review. D, Particles Fields, Vol. 72, Issue 12; Other Information: DOI: 10.1103/PhysRevD.72.125007; (c) 2005 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BAG MODEL
BARYON SPECTROSCOPY
CASIMIR EFFECT
GEOMETRY
GLUONS
HADRONS
MESON SPECTROSCOPY
PROPAGATOR
SPHERICAL CONFIGURATION