Instituto de Física Teórica UAM/CSIC (Webpage 2008-2015)

The measure of the mass of the top quark will be a relevant issue for LHC/ILC. I will discuss how a measure of this mass is achievable in these facilities and the theoretical issues concerning the extraction of this parameter. I will concentrate on the use of effective field theories and I will discuss the possible definitions of the mass that can be used. I will tell about a jet mass for the top quark and its properties.