Flavour models with Dirac and fake gluinos

Abstract

In the context of supersymmetric models where the gauginos may have both Majorana and Dirac masses we investigate the general constraints from flavour-changing processes on the scalar mass matrices. One finds that the chirality-flip suppression of flavour-changing effects usually invoked in the pure Dirac case holds in the mass insertion approximation but not in the general case, and fails in particular for inverted hierarchy models. We quantify the constraints in several flavour models which correlate fermion and scalar superpartner masses. We also discuss the limit of very large Majorana gaugino masses compared to the chiral adjoint and Dirac masses, where the remaining light eigenstate is the "fake" gaugino, including the consequences of suppressed couplings to quarks beyond flavour constraints.

63 pages, 6 figures, 9 tables. V3: matches published version

References in corpus (13)

• Flavor in Supersymmetry with an Extended R-symmetry
• R-symmetric gauge mediation
• A Supersymmetric One Higgs Doublet Model
• Hierarchical Soft Terms and Flavor Physics
• Viable Gravity-Mediated Supersymmetry Breaking
• The Constrained Minimal Dirac Gaugino Supersymmetric Standard Model
• Dirac Neutralinos and Electroweak Scalar Bosons of N=1/N=2 Hybrid Supersymmetry at Colliders
• Fitting Neutrino Physics with a U(1)_R Lepton Number
• R-symmetric Gauge Mediation and the MRSSM
• Electroweak Baryogenesis in R-symmetric Supersymmetry
• A New Gauge Mediation Theory
• Light third-generation squarks from flavour gauge messengers
• Flavour Changing Neutral Currents and Inverted Sfermion Mass Hierarchy

Cited by in corpus (41)

• A facility to Search for Hidden Particles at the CERN SPS: the SHiP physics case
• Exploring new models in all detail with SARAH
• Diphoton resonance at 750 GeV in the broken MRSSM
• Non-standard supersymmetry breaking and Dirac gaugino masses without supersoftness
• The Constrained Minimal Dirac Gaugino Supersymmetric Standard Model
• Leading two-loop corrections to the Higgs boson masses in SUSY models with Dirac gauginos
• Exploring the Higgs sector of the MRSSM with a light scalar
• Squark production in R-symmetric SUSY with Dirac gluinos: NLO corrections
• Higgs alignment from extended supersymmetry
• Dark matter scenarios in a constrained model with Dirac gauginos
• The Di-Photon Excess in a Perturbative SUSY Model
• 7 keV Sterile neutrino dark matter in $U(1{)}_R-$ lepton number model
• Dirac Gauginos in Low Scale Supersymmetry Breaking
• Doubling Up on Supersymmetry in the Higgs Sector
• Automatised matching between two scalar sectors at the one-loop level
• LHC limits on gluinos and squarks in the minimal Dirac gaugino model
• Constraining Electroweakinos in the Minimal Dirac Gaugino Model
• Exploring color-octet scalar parameter space in minimal $R$-symmetric models
• Low-energy lepton physics in the MRSSM: $(g-2{)}_{\mu }$, $\mu \to e\gamma$ and $\mu \to e$ conversion
• $h\to \gamma \gamma$ in $U(1{)}_R-$ lepton number model with a right-handed neutrino
• Interpreting 95 GeV di-photon/$b\bar{b}$ excesses as a lightest Higgs boson of the MRSSM
• Confronting the coloured sector of the MRSSM with LHC data
• Fixed Point and Anomaly Mediation in Partially $N=2$ Supersymmetric Standard Models
• Charting generalized supersoft supersymmetry
• Light top squarks in $U(1{)}_R$-lepton number model with a right handed neutrino and the LHC
• Color-octet scalars in Dirac gaugino models with broken $R$ symmetry
• $t\bar{t}t\bar{t}$ signatures through the lens of color-octet scalars
• Neutrino masses from a pseudo-Dirac Bino
• CP Violation in Pseudo-Dirac Fermion Oscillations
• (O)Mega Split
• W boson mass in minimal Dirac gaugino scenarios
• Constrained Dirac gluino mediation
• 126 GeV Higgs Boson Associated with D-term Triggered Dynamical Supersymmetry Breaking
• Dark Matter, Neutrino mass, Cutoff for Cosmic-Ray Neutrino, and Higgs Boson Invisible Decay from a Neutrino Portal Interaction
• Next-to-minimal $R$-symmetric model: Dirac gaugino, Higgs mass and invisible width
• Scalar color octets and triplets in the SUSY with R-symmetry
• Reinterpreting $pp\to W^{+}{W}^{-}$ searches for charginos
• Squark production with R-symmetry beyond NLO at the LHC
• Mixed gluinos and sgluons from a new SU(3) gauge group
• Mass Sum Rule of the Effective Action on Vacua with Broken Rigid N=1 Supersymmetry
• Nambu-Jona-Lasinio Theory and Dynamical Breaking of Supersymmetry