TY - JOUR
T1 - The physics of heavy Z′ gauge bosons
AU - Langacker, Paul
N1 - Copyright:
Copyright 2009 Elsevier B.V., All rights reserved.
PY - 2009/8/7
Y1 - 2009/8/7
N2 - The U (1)′ symmetry associated with a possible heavy Z′ would have profound implications for particle physics and cosmology. The motivations for such particles in various extensions of the standard model, possible ranges for their masses and couplings, and classes of anomaly-free models are discussed. Present limits from electroweak and collider experiments are briefly surveyed, as are prospects for discovery and diagnostic study at future colliders. Implications of a Z′ are discussed, including an extended Higgs sector, extended neutralino sector, and solution to the μ problem in supersymmetry; exotic fermions needed for anomaly cancellation; possible flavor changing neutral current effects; neutrino mass; possible Z′ mediation of supersymmetry breaking; and cosmological implications for cold dark matter and electroweak baryogenesis.
AB - The U (1)′ symmetry associated with a possible heavy Z′ would have profound implications for particle physics and cosmology. The motivations for such particles in various extensions of the standard model, possible ranges for their masses and couplings, and classes of anomaly-free models are discussed. Present limits from electroweak and collider experiments are briefly surveyed, as are prospects for discovery and diagnostic study at future colliders. Implications of a Z′ are discussed, including an extended Higgs sector, extended neutralino sector, and solution to the μ problem in supersymmetry; exotic fermions needed for anomaly cancellation; possible flavor changing neutral current effects; neutrino mass; possible Z′ mediation of supersymmetry breaking; and cosmological implications for cold dark matter and electroweak baryogenesis.
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U2 - 10.1103/RevModPhys.81.1199
DO - 10.1103/RevModPhys.81.1199
M3 - Article
AN - SCOPUS:68549085404
VL - 81
SP - 1199
EP - 1228
JO - Reviews of Modern Physics
JF - Reviews of Modern Physics
SN - 0034-6861
IS - 3
ER -