Seminar:Wednesday, 19 March 2014, 11:00am, SR1
(refreshments served at 10:45am)
Title: "Radiatively-driven natural supersymmetry with implications for LHC, ILC, wimp and axion searches"
Abstract: The recent discovery of a 125 GeV Higgs boson --coupled with lack of SUSY signal at LHC-- has led many to question SUSY naturalness. In radiatively-driven natural SUSY, SUSY is perfectly natural with a hallmark signature of light higgsinos with mass 100-200 GeV. The resultant spectrum may well elude LHC searches. However, the International Linear Collider operating with E>2m(higgsino) would be a higgsino factory and serve as a SUSY discovery machine! Thermally produced neutralinos comprise only a small portion of dark matter, with the remainder is composed of axions. The SUSY DFSZ axion model elegantly accommodates a hierarchy between Peccei-Quinn (PQ) and SUSY breaking scales, and correlates the Higgs mass with the PQ scale. Both axion and higgsino-like wimp detection are expected, but it may take a ton-scale noble liquid detector to completely explore the wimp possibility.
