A STUDY OF NONLINEAR REALIZATIONS OF SUPERSYMMETRY
Abstract
We compute the non-linear effective Lagrangian obtained from the (tree-level) spontaneously broken O'Raifeartaigh model using non-linear splitting-form superfields. The coupling of the non-linear Goldstone fermion (Akulov-Volkov field) to all spectator fields in the O'Raifeartaigh model and to itself is explicitly calculated. The non-renormalizable effective Lagrangian so obtained recovers the correct pure Goldstone fermion zero-momentum decoupling limit, and exhibits the underlying dynamics of the O'Raifeartaigh model through the universality of the couplings between spectator fields and the derivatively-coupled Goldstone fermion.
Degree
Ph.D.
Subject Area
Particle physics
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