Reference Reactions for the World-Wide LC Study

Keisuke Fujii, Michael Peskin, Francois Richard

In this document, we list a number of reactions that we feel have special importance for understanding the goals of the next-generation linear e+e- collider (LC) and the energy, luminosity, and detector capabilities necessary to achieve those goals. This is not meant to be an exhaustive list of reactions that can be studied at the LC. Please let us know of any egregious omissions.

• Contact interactions and new Z's
• W physics
• Top physics
• Higgs physics
• Supersymmetry
• Strong-coupling electroweak physics
• Reactions for gamma-gamma collisions

We would like to call special attention to several processes which, in our opinion, give the most important performance criteria for the detector design. These are:

• W reconstruction in e+e- -> W+W-,
• top quark reconstruction in e+e- -> t tbar,
• measurement of e+e- -> selectron pairs in the presence of 2-photon backgrounds, as a test of hermeticity,
• Higgs recoil mass measurement in e+e- -> Zh, Z -> mu+mu-, as a test of charged particle tracking.