Speaker
Dr
Martin Wiebusch
(Karlsruhe Institute of Technology)
Description
In this talk I present results of a global analysis of electroweak
precision data and Higgs signal strengths in the context of the Standard
Model with three and four fermion generations. I re-examine the SM electroweak fit with the new input on the Higgs mass and discuss the effect of a fourth fermion generation on the Higgs signal strengths. To quantify the level at which a fourth fermion generation is ruled out one must deal with the statistics of so-called non-nested models, because the three-family case is not recovered in any limit of the four-family model. To this end the computer package myFitter has been developed, which I will describe in my talk.
Primary author
Dr
Martin Wiebusch
(Karlsruhe Institute of Technology)
