The collider variable mT2: derivation, properties, and an application to SUSY GUTs

by Prof. Diego Guadagnoli (Munich, Tech. U.)

Monday 10 Jan 2011, 14:30 → 16:00 Europe/Rome

Aula Conversi (Dip. di Fisica - Edificio G. Marconi)

I derive the kinematical variable mT2 as a generalization of the mT variable, used at the UA1 experiment to measure the W mass from the semi-invisible mode W -> e nu. I then discuss a number of properties of mT2, that make it a very attractive tool for LHC events. For example its "kink", which allows one to determine two new-particles' masses simultaneously. Finally, I illustrate the above ideas in a concrete example, taken from SUSY GUTs.

Slides guadagnoli.pdf