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Résumé |
The LHC has pushed the scale of the needed new physics (NP) beyond the ~ TeV range. How
to experimentally test NP models at and beyond those scales?
A first possibility is to look for low energy remnants of such theories, like pseudo-Goldstone
bosons (aka ALPs) from an approximate global symmetry. I will show how ALP masses
between a few GeV and 60 GeV are poorly constrained, derive a new bound on diphoton
resonances in that range, and propose new related searches at ATLAS, CMS and LHCb.
A second possibility is to look for DM (much) heavier than a TeV in cosmic rays, that are
observed up to 100 TeV and beyond by several ongoing and near-future telescopes (HESSII,
HAWC, CTA, TAIGA, ANTARES, IceCube, KM3NeT, ...). I will discuss the theory and
phenomenology of models that evade the so-called DM unitarity bound, and thus enrich the
physics case of such telescopes. |
