22-28 July 2010
Palais des Congrès de Paris
Europe/Paris timezone

Effects of a potential fourth fermion generation on the upper and lower Higgs boson mass bounds

23 Jul 2010, 12:05
25m
Salle 252A ()

Salle 252A

Parallel Session Talk 09 - Progress in Lattice Techniques and New Results 09 - Progress in Lattice Techniques and New Results

Speaker

Dr Philipp Gerhold (Humboldt-University Berlin)

Description

We study the effect of a potential fourth fermion generation on the upper and lower Higgs boson mass bounds. This investigation is based on the numerical evaluation of a chirally invariant lattice Higgs-Yukawa model emulating the same Higgs-fermion coupling structure as in the Higgs sector of the electroweak Standard Model. In particular, the considered model obeys a Ginsparg-Wilson version of the underlying SU(2)_L x U(1)_Y symmetry, being a global symmetry here due to the neglection of gauge fields in this model. Here we present our first results on the fermion mass dependence of the Higgs boson mass bound as well as its cutoff dependence at very heavy fermion masses.

Primary authors

Mr Jim Kallarackal (Humboldt-University Berlin) Dr Karl Jansen (NIC, DESY-Zeuthen) Dr Philipp Gerhold (Humboldt-University Berlin)

Presentation Materials