5. Theoretical Physics (CSN4)

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

by Dr Karl Jansen (NIC, DESY Zeuthen)

Aula Seminari (LNF)

Aula Seminari


Via Enrico Fermi, 40 00044 Frascati (Roma)
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 constraint 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.