Constraining the Higgs boson mass: a non-perturbative lattice study

by Prof. Karl Jansen (DESY, Zeuthen (Germany))

Thursday 15 Dec 2011, 14:30 → 15:30 Europe/Rome

2B (Roma Tre (Facolta' di Scienze))

We present a calculation of lower and upper Higgs boson mass bounds and decay widths from non-perturbative lattice simulations using a chirally invariant lattice Higgs-Yukawa model. Our results constrain the allowed range of Higgs boson masses. These constraints, in turn, provide the energy scale up to which the standard model can be valid. We extend our studies to a possible heavy fourth fermion generation and demonstrate that the Higgs boson mass bounds can be affected strongly.