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57 papers · 2 filters
The Relic Neutralino Surface at a 100 TeV collider
Joseph Bramante, Patrick J. Fox, Adam Martin +4
We map the parameter space for MSSM neutralino dark matter which freezes out to the observed relic abundance, in the limit that all superpartners except the neutralinos and chargin…
Dark Matter Signals in Dilepton Production at Hadron Colliders
Wolfgang Altmannshofer, Patrick J. Fox, Roni Harnik +2
We show that new physics can show up in dileptonic events through its radiative contributions to the dilepton invariant mass, leading to unique "monocline" features in $m_{\ell\ell…
Z' Mediated Dark Matter Models for the Galactic Center Gamma-Ray Excess
Dan Hooper
With the goal of generating the Galactic Center gamma-ray excess, we revisit models in which the dark matter interacts with the Standard Model through the exchange of a new neutral…
WIMPs at the Galactic Center
Prateek Agrawal, Brian Batell, Patrick J. Fox +1
Simple models of weakly interacting massive particles (WIMPs) predict dark matter annihilations into pairs of electroweak gauge bosons, Higgses or tops, which through their subsequ…
A Tale of Tails: Dark Matter Interpretations of the Fermi GeV Excess in Light of Background Model Systematics
Francesca Calore, Ilias Cholis, Christopher McCabe +1
Several groups have identified an extended excess of gamma rays over the modeled foreground and background emissions towards the Galactic center (GC) based on observations with the…
Colorless Top Partners, a 125 GeV Higgs, and the Limits on Naturalness
Gustavo Burdman, Zackaria Chacko, Roni Harnik +2
Theories of physics beyond the Standard Model that address the hierarchy problem generally involve top partners, new particles that cancel the quadratic divergences associated with…