Discovery and Identification of Extra Gauge Bosons

Abstract

The discovery potential and diagnostic abilities of proposed future colliders for new heavy neutral ($Z'$) and charged ($W'$) gauge bosons are summarized. Typical bounds achievable on $M_{Z',W'}$ at the TEVATRON, DI-TEVATRON, LHC, 500 GeV NLC, and 1 TeV NLC are $\sim$1~TeV, $\sim$2~TeV, $\sim$4~TeV, 1--3~TeV, and 2--6~TeV, respectively. For $M_{Z'} \sim$1 TeV the LHC will have the capability to determine the magnitude of normalized $Z'$ quark and lepton couplings to around $10-20\%$, while the NLC would allow for determination of the couplings (including their signs) with a factor of 2 larger error-bars, provided heavy flavor tagging and longitudinal polarization of the electron beam is available.

34 pages, Latex file using equations.sty and psfig.sty, 6 postcript figures (uuencoded) added with figures command. Full postcript version, complete with embedded figures is available at ftp://ftp.physics.carleton.ca/pub/theory/godfrey/ocip9502.ps . Summary of the Working Subgroup on Extra Gauge Bosons of the DPF Long-Range Planning Study, to be published in "Electroweak Symmetry Breaking and Beyond the Standard Model", eds T. Barklow, S. Dawson, H. Haber, and J. Seigrist