Report on: An extended scalar sector to address the tension between a fourth generation and Higgs searches at the LHC

by Diptimoy Ghosh

Friday 2 Sept 2011, 11:30 → 12:30 Asia/Kolkata

A-304 (Colaba Campus)

Authors: Xiao-Gang He, German Valencia Abstract: It is expected that the LHC will soon discover the Higgs boson, or that failure to find it will severely constrain its production cross-section over a large mass range. Either one of these results spells trouble for a fourth generation that significantly enhances the Higgs production cross-section at LHC. In fact the LHC has already ruled out a SM Higgs mass in the range of 120 GeV to 600 GeV with a fourth generation at the 95% C.L. In this paper we explore options within extended scalar sectors to maintain the viability of a heavy fourth generation if an enhanced (relative to the Standard Model) Higgs production cross-section is not observed.

Paper http://arxiv.org/pdf/1108.0222v2