Pheno seminar

Speaker: Goh Hock-seng (Berkeley)
Title: Twin Higgs and Lepton Number Violation at the LHC
Date (JST): Thu, Aug 20, 2009, 11:00 - 12:00
Place: Room 630
Related File: 131.pdf
Abstract: It is generally believed that new TeV scale particles that help addressing
the hierarchy problem, i.e. stop in the MSSM or heavy top partner in
little Higgs models, can be discovered at the LHC. However, there are
models that suggest otherwise. Twin Higgs could be one of the examples. We
study the collider signal of the left-right twin Higgs model in the limit
that the right-handed neutrino mass is less than the mass of the
right-handed gauge boson. In this limit, new leptonic decay chains open
up, allowing the discovery of particles that regularize the one-loop
quadratic divergences of the Higgs. Half of these events contain
leptons without missing energy, which have no genuine standard model
background and therefore provide a clean signal for discovery
Contact: Kai Wang