Particle Physics Opportunities at μ+μ- Colliders
Abstract
We discuss the capabilities of future muon colliders to resolve important particle physics questions. A collider with c.m. energy s = 100 to 500~GeV offers the unique opportunity to produce Higgs bosons in the s-channel and thereby measure the Higgs masses, total widths and several partial widths to high precision. At this same machine, t t and W+W- threshold studies would yield superior precision in the determination of mt and mW. A multi-TeV μ+μ- collider would open up the realm of physics above the 1 TeV scale, allowing, for example, copious production of supersymmetric particles up to the highest anticipated masses or a detailed study of the strongly-interacting scenario of electroweak symmetry breaking.
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