The physics of heavy Z′ gauge bosons

Paul Langacker

Research output: Contribution to journalArticlepeer-review

873 Scopus citations


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.

Original languageEnglish (US)
Pages (from-to)1199-1228
Number of pages30
JournalReviews of Modern Physics
Issue number3
StatePublished - Aug 7 2009

All Science Journal Classification (ASJC) codes

  • General Physics and Astronomy


Dive into the research topics of 'The physics of heavy Z′ gauge bosons'. Together they form a unique fingerprint.

Cite this