The exact superconformal R-symmetry extremizes Z

Nonlinear superconformal symmetry

We discuss two different nonlinear generalizations of the osp(2|2) supersymmetry which arise in superconformal mechanics and fermion-monopole models. Submitted to the Proceedings of the International Workshop “Supersymmetries and Quantum Symmetries” (SQS’03, Dubna, Russia, 24-29 July 2003)

Singlet Extensions of the MSSM with Z R 4 Symmetry

We discuss singlet extensions of the MSSM with ZR 4 symmetry. We show that holomorphic zeros can avoid a potentially large coefficient of the term linear in the singlet. The emerging model has both an effective μ term and a supersymmetric mass term for the singlet μ N which are controlled by the gravitino mass. The μ term turns out to be suppressed against μ N by about one or two orders of magn...

BMN Operators and Superconformal Symmetry

Implications of N = 4 superconformal symmetry on Berenstein-MaldacenaNastase (BMN) operators with two charge defects are studied both at finite charge J and in the BMN limit. We find that all of these belong to a single long supermultiplet explaining a recently discovered degeneracy of anomalous dimensions on the sphere and torus. The lowest dimensional component is an operator of naive dimensi...

Superconformal Symmetry and Correlation Functions

Four-dimensional N -extended superconformal symmetry and correlation functions of quasi-primary superfields are studied within the superspace formalism. A superconformal Killing equation is derived and its solutions are classified in terms of supertranslations, dilations, Lorentz transformations, R-symmetry transformations and special superconformal transformations. In general, due to the invar...

Exacting N = 4 Superconformal Symmetry