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Gluon mass generation without seagull divergences
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Gluon mass generation without seagull divergences
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| dc.contributor.author | Aguilar, Arlene Cristina | |
| dc.contributor.author | Papavassiliou, Joannis | |
| dc.date.accessioned | 2015-04-23T07:20:15Z | |
| dc.date.available | 2015-04-23T07:20:15Z | |
| dc.date.issued | 2010 | |
| dc.identifier.citation | Aguilar, Arlene Cristina Papavassiliou, Joannis 2010 Gluon mass generation without seagull divergences Physical Review D 81 3 034003 | |
| dc.identifier.uri | http://hdl.handle.net/10550/43285 | |
| dc.description.abstract | Dynamical gluon mass generation has been traditionally plagued with seagull divergences, and all regularization procedures proposed over the years yield finite but scheme-dependent gluon masses. In this work we show how such divergences can be eliminated completely by virtue of a characteristic identity, valid in dimensional regularization. The ability to trigger the aforementioned identity hinges crucially on the particular Ansatz employed for the three-gluon vertex entering into the Schwinger-Dyson equation governing the gluon propagator. The use of the appropriate three-gluon vertex brings about an additional advantage: one obtains two separate (but coupled) integral equations, one for the effective charge and one for the gluon mass. This system of integral equations has a unique solution, which unambiguously determines these two quantities. Most notably, the effective charge freezes in the infrared, and the gluon mass displays power-law running in the ultraviolet, in agreement with earlier considerations. | |
| dc.language.iso | eng | |
| dc.relation.ispartof | Physical Review D, 2010, vol. 81, num. 3, p. 034003 | |
| dc.subject | Física | |
| dc.title | Gluon mass generation without seagull divergences | |
| dc.type | journal article | es_ES |
| dc.date.updated | 2015-04-23T07:20:15Z | |
| dc.identifier.doi | 10.1103/PhysRevD.81.034003 | |
| dc.identifier.idgrec | 062073 | |
| dc.rights.accessRights | open access | es_ES |
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