منابع مشابه
Anomalies on orbifolds
We discuss the form of the chiral anomaly on an S/Z2 orbifold with chiral boundary conditions. We find that the 4-divergence of the higher-dimensional current evaluated at a given point in the extra dimension is proportional to the probability of finding the chiral zero mode there. Nevertheless the anomaly, appropriately defined as the five dimensional divergence of the current, lives entirely ...
متن کاملLocalization and anomalies on orbifolds
In this talk we discus some properties of supersymmetric theories on orbifolds in five dimensions. The structure of FI–tadpoles may lead to (strong) localization of charged bulk scalars. Orbifold theories may suffer from various kinds of anomalies. The parity anomaly may render the construction of the orbifold theory ill–defined. The gauge anomaly on the orbifold are localized at the fixed poin...
متن کاملAnomalies on Six Dimensional Orbifolds
We consider localized anomalies in six dimensional Zn orbifolds. We give a very simple expression for the contribution of a bulk fermion to the fixed point gauge anomaly that is independent of the order n of the orbifold twist. We show it can be split into three terms, two of which are canceled by bulk fermions and Green-Schwarz four forms respectively. The remaining anomaly carries an integer ...
متن کاملAnomalies on orbifolds with gauge symmetry breaking
We consider the breaking of 5D SUSY G = SU(N +K) gauge symmetry into H = SU(N) × SU(K) × U(1) on an orbifold S/(Z2 × Z ′ 2). There appear two independent fixed points: one respects the full bulk gauge symmetry G while the other contains only the unbroken gauge symmetry H . In the model with one bulk (N + K)-plet, giving a K-plet as the zero mode, we show that localized non-abelian gauge anomali...
متن کاملLocalized anomalies in heterotic orbifolds
Recently spatially localized anomalies have been considered in higher dimensional field theories. The question of the quantum consistency and stability of these theories needs further discussion. Here we would like to investigate what string theory might teach us about theories with localized anomalies. We consider the Z3 orbifold of the heterotic E8×E8 theory, and compute the anomaly of the ga...
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ژورنال
عنوان ژورنال: Physics Letters B
سال: 2001
ISSN: 0370-2693
DOI: 10.1016/s0370-2693(01)00946-7