Dimensional Reduction in Non - Supersymmetric Theories
نویسندگان
چکیده
It is shown that regularisation by dimensional reduction is a viable alternative to dimensional regularisation in non-supersymmetric theories.
منابع مشابه
Dimensional Reduction over Coset Spaces and Supersymmetry Breaking
We address the question of supersymmetry breaking of a higher dimensional supersymmetric theory due to coset space dimensional reduction. In particular we study a ten-dimensional supersymmetric E8 gauge theory which is reduced over all six-dimensional coset spaces. We find that the original supersymmetry is completely broken in the process of dimensional reduction when the coset spaces are symm...
متن کاملDimensional Reduction of ten - dimensional Supersymmetric Gauge Theories in the N = 1 , D = 4 Superfield Formalism
A ten-dimensional supersymmetric gauge theory is written in terms of N = 1, D = 4 superfields. The theory is dimensionally reduced over six-dimensional coset spaces. We find that the resulting four-dimensional theory is either a softly broken N = 1 supersymmetric gauge theory or a non-supersymmetric gauge theory depending on whether the coset spaces used in the reduction are non-symmetric or sy...
متن کاملRegularization of supersymmetric theories: Recent improvements
Recent progress concerning regularization of supersymmetric theories is reviewed. Dimensional reduction is reformulated in a mathematically consistent way, and an elegant and general method is presented that allows to study the supersymmetry-invariance of dimensional reduction in an easy manner. This method is applied to several supersymmetry identities at the oneand two-loop level, and thus th...
متن کاملLow Energy Dynamics of Monopoles in Supersymmetric Yang-Mills Theories with Hypermultiplets
We derive the low energy dynamics of monopoles and dyons in N = 2 supersymmetric Yang-Mills theories with hypermultiplets in arbitrary representations by utilizing a collective coordinate expansion. We consider the most general case that Higgs fields both in the vector multiplet and in the hypermultiplets have nonzero vacuum expectation values. The resulting theory is a supersymmetric quantum m...
متن کاملDimensional Reduction Applied to Non-susy Theories
We consider regularisation of a Yang-Mills theory by Dimensional Reduction (dred). In particular, the anomalous dimensions of fermion masses and gauge coupling are computed to fourloop order. We put special emphasis on the treatment of evanescent couplings which appear when dred is applied to non-supersymmetric theories. We highlight the importance of distinguishing between the evanescent and t...
متن کامل