Paolo Ciafaloni(INFN - Sezione di Lecce and CERN-PH-TH)
TH Theory Conference Room (CERN)
TH Theory Conference Room
Electroweak radiative corrections at energies much higher than the weak scale
feature a peculiar behavior. Virtual corrections grow with the center of mass
energy of the process and are tipically in the 20-30% range at the TeV scale.
Moreover, surprisingly, there is a lack of virtual and real cancellation which
has been baptised "Bloch-Nordsieck violation". Contrary to what happens in QED
and QCD, even observables that are fully inclusive of electroweak gauge bosons
emissions are infrared sensitive: they depend on the log square of the infrared
cutoff. I briefly report on results on resummations and fixed order
calculations and discuss their relevance for LHC and ILC.