Thursday, November 24, 2016, 16:00
OSGA/EG06
Aldo Deandrea, Lyon University
Abstract:
I first recall the historical searches for a Higgs Boson in the low mass
region and then consider present constraints, with a focus on on two
Higgs doublet models, both from the LHC at Run 1 and from other sources
in order to explore the possibility of constraining a neutral scalar or
pseudoscalar particle lighter than the 125 GeV Higgs boson. Contrary to
naive expectations, such a lighter particle is not yet completely
excluded by present data. I show how some new constraints can be
obtained at the LHC if such a search is performed by the experimental
collaborations.