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

Autor(en)

Daniel Blaschke, Arnold Rofner, Rene I. P. Sedmik, Michael Wohlgenannt

Abstrakt

Based on our recent findings regarding (non-)renormalizability of non-commutative U-star(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-star(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.

Organisation(en)

Mathematische Physik

Externe Organisation(en)

Technische Universität Wien

Journal

Journal of Physics A: Mathematical and General

Band

43

Anzahl der Seiten

18

ISSN

0305-4470

DOI

https://doi.org/10.1088/1751-8113/43/42/425401

Publikationsdatum

2010

Peer-reviewed

Ja

ÖFOS 2012

103019 Mathematische Physik

Link zum Portal

https://ucrisportal.univie.ac.at/de/publications/5e5fdb0f-d34d-4663-bf9f-6eddb43a7a5e