Particle and Astro-Particle Physics Seminars

Closing the window for the Dark Sector at 100 TeV

by Rakhi Mahbubani (CERN)

Europe/Zurich
4/3-006 - TH Conference Room (CERN)

4/3-006 - TH Conference Room

CERN

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Description

We re-assess the reach, at a 100 TeV proton-proton collider, for a heavy particle that decays only to MET, under varying detector properties. We analyse the sensitivity to a disappearing charged track due to the production and decay of a high-momentum electrically-charged component; and also independently to additional radiation from the initial state of a hard leptonic Z-boson, and ask what tracker and calo specs will be necessary to extend the reach to larger masses/shorter lifetimes than might be possible at an ATLAS/CMS-type detector. For pure higgsino thermal dark matter, an example of a simple and well-motivated model with such signatures that is hard to probe by other means, we find that discovery due to the charged track will require 100 % tracking efficiency within r of 11.2 mm (9.5 mm) for 10 (20) high-p_T charged track events.