The Physics Capabilities of mu^+ mu^- Colliders

Abstract

We summarize the potential of muon colliders to probe fundamental physics. $W^+W^-$, \bar tt, and $Zh$ threshold measurements could determine masses to precisions $ΔM_W = 6$ MeV, $Δm_t = 70$ MeV, and $Δm_h = 45$ MeV, to test electroweak radiative corrections. With $s$-channel Higgs production, unique to a muon collider, the Higgs mass could be pinpointed ($Δm_h < 1$ MeV) and its width measured. The other Higgs bosons of supersymmetry can be produced and studied by three methods. If instead the $WW$ sector turns out to be strongly interacting, a 4 TeV muon collider is ideally suited to its study.

Talk presented by V. Barger at the symposium "New Ideas for Particle Accelerators", Inst. for Theor. Physics, Santa Barbara, California, Oct. 1996. Latex 2.09 with aipproc.sty and epsf.sty, 11 embedded postscript figures. Postscript version of the complete paper is also available at http://phenom.physics.wisc.edu/pub/preprints/1997/madph-97-989.ps.Z or at ftp://phenom.physics.wisc.edu/pub/preprints/1997/madph-97-989.ps.Z