Aspects of Z{sup '}-mediated supersymmetry breaking
- School of Natural Sciences, Institute for Advanced Study, Einstein Drive, Princeton, New Jersey 08540 (United States)
- Physics Department, Princeton University, Princeton, New Jersey 08544 (United States)
In a recent paper, we proposed the possibility that supersymmetry breaking is communicated dominantly via a U(1){sup '} vector multiplet. We also required that the U(1){sup '} plays a crucial role in solving the {mu} problem. We discuss here in detail both the construction and the phenomenology of one class of such models. The low-energy spectrum generically contains heavy sfermions, Higgsinos and exotics {approx}10-100 TeV; an intermediate M{sub Z{sup '}} {approx}3-30 TeV; light gauginos {approx}100-1000 GeV, of which the lightest can be W-ino-like; a light Higgs with a mass of {approx}140 GeV; and a singlino which can be very light. We present a set of possible consistent charge choices. Several benchmark models are used to demonstrate characteristic phenomenological features. Special attention is devoted to interesting LHC (Large Hadron Collider) signatures such as gluino decay and the decay patterns of the electroweak-inos. Implications for neutrino masses, exotic decays, R-parity, gauge unification, and the gravitino mass are briefly discussed.
- OSTI ID:
- 21250068
- Journal Information:
- Physical Review. D, Particles Fields, Vol. 77, Issue 8; Other Information: DOI: 10.1103/PhysRevD.77.085033; (c) 2008 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0556-2821
- Country of Publication:
- United States
- Language:
- English
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