Pseudo-Goldstini in Field Theory

Abstract

We consider two SUSY-breaking hidden sectors which decouple when their respective couplings to the visible particles are switched off. In such a scenario one expects to find two light fermions: the Goldstino and the pseudo-Goldstino. While the former remains massless in the rigid limit, the latter becomes massive due to radiative effects which we analyze from several different points of view. This analysis is greatly facilitated by a version of the Goldberger-Treiman relation, which allows us to write a universal non-perturbative formula for the mass. We carry out the analysis in detail in the context of gauge mediation, where we find that the pseudo-Goldstino mass is at least around the GeV scale and can be easily at the electroweak range, even in low scale models. This leads to interesting and unconventional possibilities in collider physics and it also has potential applications in cosmology.

21 pages, harvmac, 4 figures. v2: references added, minor corrections

References in corpus (13)

• General Gauge Mediation
• From Linear SUSY to Constrained Superfields
• Moduli Decays and Gravitinos
• Relating the Komargodski-Seiberg and Akulov-Volkov actions: Exact nonlinear field redefinition
• General Messenger Gauge Mediation
• The Goldstini Variations
• Goldstinos, Supercurrents and Metastable SUSY Breaking in N=2 Supersymmetric Gauge Theories
• Brane-Worlds Pseudo-Goldstinos
• Goldstini as the decaying dark matter
• Higgs Portal to Visible Supersymmetry Breaking
• On equivalence of the Komargodski-Seiberg action to the Volkov-Akulov action
• Decoupling and Destabilizing in Spontaneously Broken Supersymmetry
• Higgsinoless Supersymmetry and Hidden Gravity

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• Thermal Goldstino Production with Low Reheating Temperatures
• Goldstino and sgoldstino in microscopic models and the constrained superfields formalism
• Visible Supersymmetry Breaking and an Invisible Higgs
• Low-scale SUSY breaking and the (s)goldstino physics
• Higgs decay to goldstini and its observability at the LHC
• Constraining CP-phases in SUSY: an interplay of muon/electron $g-2$ and electron EDM
• Collider signatures of goldstini in gauge mediation
• Explanation of electron and muon $g-2$ anomalies in AMSB
• Pseudo-goldstino and electroweakinos via VBF processes at LHC
• Supergravity Computations without Gravity Complications
• Pseudo-goldstino and electroweak gauginos at the LHC
• An explicit calculation of pseudo-goldstino mass at the leading three-loop level
• Z-peaked excess in goldstini scenarios
• Multiphoton signatures of goldstini at the LHC
• Emergent gauge theories and supersymmetry: a QED primer
• The case for three-body decaying dark matter
• Photon and photino as Nambu-Goldstone zero modes in an emergent SUSY QED
• Gauge Fields as Goldstone Bosons Triggered by Spontaneously Broken Supersymmetry
• Soft Spectrum in Yukawa-Gauge Mediation
• Making The Most Of MET: Mass Reconstruction From Collimated Decays
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• Vacuum statistics and parameter tuning for F-term supersymmetry breaking
• Signs of Tops from Highly Mixed Stops
• Super-Higgs in Superspace
• Enhanced Higgs pair production from higgsino decay at the HL-LHC
• Multilepton and multiphoton signatures of supersymmetry at the LHC
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• Aspects of astrophysical particle production and beyond the Standard Model phenomenology