Particle physics opportunities at μ+μ− colliders

Particle Physics Opportunities at μ + μ − Colliders

We discuss the capabilities of future muon col-liders 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, tt and W + W − threshold studies would yield superior p...

Particle Physics at Future Colliders

The search for physics beyond the Standard Model motivates new high-energy accelerators, which will require high luminosities in order to produce interesting new heavy particles. Using the Higgs boson and supersymmetry as examples, we discuss the capabilities of the LHC and ee linear colliders in the TeV and multi-TeV energy ranges to discover and study new particles. CERN-TH/2002-292 hep-ex/02...

Resonant CP-Violating Scalar–Pseudoscalar Transitions at μμ Colliders

A μμ collider is an appealing machine to probe resonant CP-violating transitions of a CP-even Higgs particle into the Z boson or into another CP-odd Higgs scalar. These phenomena are studied within a manifestly gauge-invariant approach implemented by the pinch technique. The CP invariance of an extended Higgs sector motivated by supersymmetric E6 models is assumed to be broken radiatively by th...

Higgs–Z Mixing and Resonant CP Violation at μμ Colliders

A μμ collider is an appealing machine to probe resonant CP-violating transitions between a CP-even Higgs particle and the Z boson or between Higgs scalars with different CP quantum numbers. The size of the CP-violating effects is estimated by using an observable of CP asymmetry based on longitudinally polarized muons. These phenomena are studied within a manifestly gauge-invariant approach impl...

Physics at Linear Colliders