Causal Approach to Supersymmetry: Chiral Superfields
نویسندگان
چکیده
We construct quantized free superfields and represent them as operator-valued distributions in Fock space starting with Majorana fields. The perturbative construction of the S-matrix for interacting theories is carried through by extending the causal method of Epstein and Glaser to superspace. We propose a scaling and singular order of distributions in superspace by a procedure which scales both commutative and non-commutative variables. Using this singular order the chiral (Wess-Zumino) model appears to be super-renormalizable.
منابع مشابه
Linear and Chiral Superfields are Usefully Inequivalent
Chiral superfields have been used, and extensively, almost ever since supersymmetry has been discovered. Complex linear superfields afford an alternate representation of matter, but are widely misbelieved to be ‘physically equivalent’ to chiral ones. We prove the opposite is true. Curiously, this re-enables a previously thwarted interpretation of the low-energy (super)field limit of superstring...
متن کاملGluino mass from dynamical supersymmetry breaking.
We present a new mechanism for gluino mass generation in models of dynamical supersymmetry breaking. The mechanism requires two colored chiral superfields which feel a nonabelian gauge interaction such that a fermion condensate is formed at a scale of order 1 TeV. Renormalizable hidden sector models, which typically yield unacceptably light gauginos, become viable if a gauge singlet is coupled ...
متن کاملNon-Renormalization Theorems in Non-Renormalizable Theories
A perturbative non-renormalization theorem is presented that applies to general supersymmetric theories, including nonrenormalizable theories in which the ∫ dθ integrand is an arbitrary gauge-invariant function F (Φ,W ) of the chiral superfields Φ and gauge field-strength superfields W , and the ∫ dθ-integrand is restricted only by gauge invariance. In the Wilsonian Lagrangian, F (Φ,W ) is unre...
متن کاملA Natural Mechanism for Supersymmetry Breaking with Zero Cosmological Constant
Supersymmetric theories in four dimensions with chiral superfields have very rich BRS cohomology, which gives rise to potential anomalies in theories that contain composite antichiral spinor superfields. Assuming the coefficients are non-zero, absence of the anomalies would generate new constraints on theories. In addition, the anomalies give rise to a new kind of supersymmetry breaking which i...
متن کاملN = (4, 4) Supersymmetry and T-Duality
A sigma model with four-dimensional target space parametrized by chiral and twisted chiral N =(2, 2) superfields can be extended to N =(4, 4) supersymmetry off-shell, but this is not true for a model of semichiral fields, where the N = (4, 4) supersymmetry can only be realized on-shell. The two models can be related to each other by T-duality. In this paper we perform a duality transformation f...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 2008