Use and abuse of fine tuning: dark matter at the LHC

by Jonathan Roberts (University of Warsaw)

Friday 9 Nov 2007, 14:00 → 15:00 Europe/Zurich

TH Theory Conference Room (CERN)

Supersymmetry is directly motivated by fine-tuning through the solution of the hierarchy problem and claims that it provides a natural candidate for dark matter. Recent counter claims that the MSSM requires significant fine-tuning, both for electroweak symmetry breaking and to get the observed relic density, suggest low energy SUSY is not well motivated. I examine the relevance of applying fine-tuning arguments to effective theories and go on to consider constructive uses for fine-tuning measures in the LHC era - both for informing our understanding of underlying GUT scale physics and as a measure of the precision with which the LHC could determine a SUSY WIMP relic density.

Slides FTTalk.pdf