On the Interactions of Light Gravitinos

Abstract

In models of spontaneously broken supersymmetry, certain light gravitino processes are governed by the coupling of its Goldstino components. The rules for constructing SUSY and gauge invariant actions involving the Goldstino couplings to matter and gauge fields are presented. The explicit operator construction is found to be at variance with some previously reported claims. A phenomenological consequence arising from light gravitino interactions in supernova is reexamined and scrutinized.

Latex, 14 pages

References in corpus (4)

• Effective Lagrangians and Light Gravitino Phenomenology
• New Astrophysical Constraints on the Mass of the Superlight Gravitino
• Supernova Constraints on a Superlight Gravitino
• Gravitinos from Gravitational Collapse

Cited by in corpus (34)

• Theories with Gauge-Mediated Supersymmetry Breaking
• From Linear SUSY to Constrained Superfields
• Low-scale supersymmetry breaking: effective description, electroweak breaking and phenomenology
• Signals of a superlight gravitino at hadron colliders when the other superparticles are heavy
• Non-linear MSSM
• Phenomenology of a leptonic goldstino and invisible Higgs boson decays
• Couplings in Pseudo-Supersymmetry
• On non-universal Goldstino couplings to matter
• D-brane Models with Non-Linear Supersymmetry
• Strongly Interacting Light Dark Matter
• Non-linear supersymmetry and intersecting D-branes
• Dirac Gauginos in Low Scale Supersymmetry Breaking
• Interactions of a Single Goldstino
• New Results for Light Gravitinos at Hadron Colliders - Tevatron Limits and LHC Perspectives
• Goldstino and sgoldstino in microscopic models and the constrained superfields formalism
• Comprehensive Constraints on a Spin-3/2 Singlet Particle as a Dark Matter Candidate
• The Effective Action For Brane Localized Gauge Fields
• Flavour non-conservation in goldstino interactions
• The Physics of Extra Dimensions
• Incompatibility of simultaneous non-linear realizations of scale symmetry and supersymmetry
• Nonlinear Realization of Supersymmetry and Superconformal Symmetry
• Naturalness in low-scale SUSY models and "non-linear" MSSM
• The Akulov-Volkov Lagrangian, Symmetry Currents and Spontaneously Broken Extended Supersymmetry
• Nonlinear Supersymmetric Effective Lagrangian and Goldstino Interactions at High Energies
• Superconformal Symmetry, The Supercurrent And Non-BPS Brane Dynamics
• Nonlinear Realizations of Supersymmetry and Other Symmetries
• Non-Linear Realization of ${\aleph }_0$-Extended Supersymmetry
• Non-Abelian Vortex-String Dynamics from Nonlinear Realization
• Dynamics of (SUSY) AdS Space Isometry Breaking
• Gauging Nonlinear Supersymmetry
• Phenomenology of Goldstino Couplings
• Nonlinear Realization and Weyl Scale Invariant p=2 Brane
• Identities in Nonlinear Realizations of Supersymmetry
• Dynamics of Weyl Scale Invariant non-BPS p=3 Branes