Physics Goals of a $\hat{I}{¼}^{+}\hat{I}{¼}^{-}$ Collider

Abstract

This working group report focuses on the physics potential of $\hat{I}{¼}^{+}\hat{I}{¼}^{-}$ colliders beyond what can be accomplished at linear $e^{+}{e}^{-}$ colliders and the LHC. Particularly interesting possibilities include (i)~$s$-channel resonance production to discover and study heavy Higgs bosons with $ZZ$ and $WW$ couplings that are suppressed or absent at tree-level (such as the $H$ and $A$ Higgs bosons of supersymmetric models), (ii)~study of the strongly interacting electroweak sector, where higher energies give larger signals, and (iii)~measurements of the masses and properties of heavy supersymmetric particles.

Report of Physics Goals Working Group presented by V. Barger at the 2nd Workshop on Physics Potential and Development of $\hat{I}{¼}^{+}\hat{I}{¼}^{-}$ Colliders, Sausalito, California, Nov.~1994. Latex file, 15 pages, uses epsf.sty to place 11 postscript figures. Compressed postscript version at ftp://phenom.physics.wisc.edu/pub/preprints/1995/madph-95-873.ps.Z or at http://phenom.physics.wisc.edu/pub/preprints/1995/madph-95-873.ps.Z