The physics of heavy Z' gauge bosons

By P. Langacker. 2008

939 citations recorded by the source corpus.

The $\mathrm{U}{(1)}^{\ensuremath{'}}$ symmetry associated with a possible heavy ${Z}^{\ensuremath{'}}$ 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 ${Z}^{\ensuremath{'}}$ are discussed, including an extended Higgs sector, extended neutralino sector, and solution to the $\ensuremath{\mu}$ problem in supersymmetry; exotic fermions needed for anomaly cancellation; possible flavor changing neutral current effects; neutrino mass; possible ${Z}^{\ensuremath{'}}$ mediation of supersymmetry breaking; and cosmological implications for cold dark matter and electroweak baryogenesis.

Subfields: Astronomy and Astrophysics, Nuclear and High Energy Physics

View Paper: https://www.semanticscholar.org/paper/d41500c83b7e4001afb66bc91d8b548e7ca66e68

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Citations in the corpus

Search for new high-mass phenomena in the dilepton final state using 36 fb$^{-1}$ of proton-proton collision data at $\sqrt{s}$ = 13 TeV with the ATLAS detector (2017, methodology): “In comparison to the benchmark Z ′SSM, which has a width of approximately 3% of its mass, the E6 models predict narrower Z ′ signals.”
A facility to search for hidden particles at the CERN SPS: the SHiP physics case (2015, methodology): “The gray area represents bounds from the past experiments PS191 [578], NuTeV [586] (both re-analysed in [323]), NA3 [580], CHARMII [588] and DELPHI [551] (as given in [313]).”
Search for New Physics with Atoms and Molecules (2017, methodology): “The experiment, extending earlier work (DeMille et al., 1999), used a selection rule for atomic transitions that is closely related to the Landau-Yang theorem (Landau, 1948; Yang, 1950) in high-energy physics.”
Neutrino decoupling beyond the Standard Model: CMB constraints on the Dark Matter mass with a fast and precise Neff evaluation (2018, background): “Finally, on more general grounds, our bounds will be applicable to dark matter particles that annihilate through a Z ′ with axial couplings to electrons or neutrinos [81].”
Jet substructure at the Large Hadron Collider (2018, background): “Besides resonaces coupling to heavy SM particles, there exist predictions for resonances that couple to quarks and gluons [331–334], including simplified Dark Matter (DM) models in which resonances couple only to quarks and DM particles [335–337].”