On non-commutative U*(1) gauge models and renormalizability

Daniel N. Blaschke, Arnold Rofner, René I P Sedmik, Michael Wohlgenannt

Research output: Contribution to JournalArticleAcademicpeer-review

Abstract

Based on our recent findings regarding (non-)renormalizability of noncommutative U*(1) gauge theories [1, 2] we present the construction of a new type of model. By introducing a soft-breaking term in such a way that only the bilinear part of the action is modified, no interaction between the gauge sector and auxiliary fields occurs. Demanding in addition that the latter form BRST doublet structures, this leads to a minimally altered non-commutative U*(1) gauge model featuring an IR damping behavior. Moreover, the new breaking term is shown to provide the necessary structure in order to absorb the inevitable quadratic IR divergences appearing at one-loop level in theories of this kind. In this paper we compute Feynman rules, symmetries and results for the vacuum polarization together with the one-loop renormalization of the gauge boson propagator and three-point functions.

Original languageEnglish
Article number425401
JournalJournal of Physics A. Mathematical and Theoretical
Volume43
Issue number42
DOIs
Publication statusPublished - 22 Oct 2010

Fingerprint

Dive into the research topics of 'On non-commutative U*(1) gauge models and renormalizability'. Together they form a unique fingerprint.

Cite this