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

by Diego Guadagnoli (Universite Paris XI)

Thursday 17 Mar 2011, 11:00 → 12:00 Europe/Zurich

Auditoire (LAPTH)

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 it's "kink", allowing to determine two new-particles' masses simultaneously.

Finally, I illustrate the above ideas in a concrete example, taken from SUSY GUTs.