GMSB with Light Stops
Antonio Delgado, Mateo Garcia-Pepin, Mariano Quiros

TL;DR
This paper explores extending gauge mediated supersymmetry breaking with supersymmetric triplets to achieve light stops and additional Higgs sector corrections while maintaining custodial symmetry, consistent with experimental data.
Contribution
It introduces a supersymmetric custodial triplet model (SCTM) that extends GMSB with triplets to address Higgs mass and stop issues without violating custodial symmetry.
Findings
Light (~1 TeV) stops are achievable.
Exotic Higgs couplings proportional to triplet VEV are predicted.
Potential measurable deviations in Higgs coupling universality.
Abstract
Gauge mediated supersymmetry breaking (GMSB) is an elegant mechanism to transmit supersymmetry breaking from the hidden to the MSSM observable sector, which solves the supersymmetric flavor problem. However the smallness of the generated stop mixing requires superheavy stops to reproduce the experimental value of the Higgs mass. Two possible ways out are: i) To extend GMSB by direct superpotential messenger-MSSM Yukawa couplings to generate sizeable mixing, thus reintroducing the flavor problem; ii) To extend the MSSM Higgs sector with singlets and/or triplets providing extra tree-level corrections to the Higgs mass. Singlets will not get any soft mass from GMSB and triplets will contribute to the parameter which could be an issue. In this paper we explore the second way by introducing extra supersymmetric triplets with hypercharges , with a tree-level custodial…
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Taxonomy
TopicsParticle physics theoretical and experimental studies · Neutrino Physics Research · Dark Matter and Cosmic Phenomena
