منابع مشابه
Softly Broken Supersymmetry
We examine the supersymmetric non-linear O(N) sigma model with a soft breaking term. In two dimensions, we found that the mass difference between supersymmetric partner fields vanishes accidentally. In three dimensions, the mass difference is observed but O(N) symmetry is always broken also in the strong coupling region. [email protected] 1
متن کاملSuperfield Derivation of the Low-Energy Effective Theory of Softly Broken Supersymmetry
We analyze the soft supersymmetry breaking parameters obtained in grand unified theories after integrating out the heavy GUT-states. The superfield formalism greatly simplifies the calculations and allows us to derive the low-energy effective theory in the general case of non-universal and non-proportional soft terms by means of a few Feynman diagrams. We find new contributions not considered b...
متن کاملRegularization Dependence of Running Couplings in Softly Broken Supersymmetry
We discuss the dependence of running couplings on the choice of regularization method in a general softly-broken N = 1 supersymmetric theory. Regularization by dimensional reduction respects supersymmetry, but standard dimensional regularization does not. We find expressions for the differences between running couplings in the modified minimal subtraction schemes of these two regularization met...
متن کاملDecoupling of the ǫ-scalar mass in softly broken supersymmetry
It has been shown recently that the introduction of an unphysical ǫ-scalar mass m̃ is necessary for the proper renormalization of softly broken supersymmetric theories by dimensional reduction (DR). In these theories, both the two-loop β-functions of the scalar masses and their one-loop finite corrections depend on m̃. We find, however, that the dependence on m̃ can be completely removed by slight...
متن کاملSoftly - Broken N = 4 Supersymmetry in the Large - N Limit
We calculate the exact values of the holomorphic observables of N = 4 supersymmetric SU(N) Yang-Mills theory deformed by mass terms which preserve N = 1 SUSY. These include the chiral condensates in each massive vacuum of the theory as well as the central charge which determines the tension of BPS saturated domain walls interpolating between these vacua. Several unexpected features emerge in th...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Physics Letters B
سال: 1982
ISSN: 0370-2693
DOI: 10.1016/0370-2693(82)90131-9