Tachyonic Squarks in Split Supersymmetry

Abstract

The decoupling of scalar particles in split supersymmetry makes the spectrum of squarks irrelevant for low energy processes. Nevertheless, the structure of the vacuum is sensitive to the spectrum of squarks, even when the supersymmetry breaking scale is large. In this note, we show that in certain regions of the parameter space, squarks could develop radiatively tachyonic masses, thus breaking electric charge and color. We discuss the constraints that follow from the requirement of charge and color conservation, and we comment on the implications for model building.

15 pages, 10 figures. Extended discussion, typos corrected, references added. Version to appear in Phys. Lett. B

References in corpus (23)

• Aspects of Split Supersymmetry
• Signatures of long-lived gluinos in split supersymmetry
• Splitting Supersymmetry in String Theory
• Dark Matter in the Finely Tuned Minimal Supersymmetric Standard Model
• Neutralino Dark Matter Detection in Split Supersymmetry Scenarios
• Electric Dipole Moment in the Split Supersymmetry Models
• Split Supersymmetry, stable gluino, and gluinonium
• Hierarchically Split Supersymmetry with Fayet-Iliopoulos D-terms in String Theory
• The Higgs Boson Mass in Split Supersymmetry at Two-Loops
• Probing Split Supersymmetry with Cosmic Rays
• Chargino Pair Production at Linear Collider and Split Supersymmetry
• Split Supersymmetry from Anomalous U(1)
• Virtual effects of light gauginos and higgsinos: a precision electroweak analysis of split supersymmetry
• Supersymmetry and precision data after LEP2
• Splitting the split supersymmetry
• Can we distinguish between h^{SM} and h^0 in split supersymmetry?
• Standard Models and Split Supersymmetry from Intersecting Brane Orbifolds
• Heavy Supersymmetric Particle Effects in Higgs Boson Production Associated with a Bottom Quark Pair at LHC and Tevatron
• Signals for CP Violation in Split Supersymmetry
• Indirect Signals from Dark Matter in Split Supersymmetry
• Structure of split supersymmetry and simple models
• Infrared fixed point of the top Yukawa coupling in split supersymmetry
• Some Comments on "Split" Supersymmetry

Cited by in corpus (9)

• Mini-Split
• Higgs Mass and Unnatural Supersymmetry
• Decays of $H^0/A^0$ in supersymmetric scenarios with heavy sfermions
• Slim SUSY
• Auxiliary Gauge Mediation: A New Route to Mini-Split Supersymmetry
• On the Tuning Condition of Split Supersymmetry
• Hunting long-lived gluinos at the Pierre Auger Observatory
• Distinguishing split supersymmetry in Higgs signals at the Large Hadron Collider
• Triviality and the (Supersymmetric) See-Saw