Dark matter produced in association with top quark pair
Deborah Pinna (on behalf of the CMS Collaboration)
TL;DR
This paper reports a search for dark matter produced alongside top quark pairs in proton-proton collisions at 8 TeV, focusing on scalar interactions that relate dark matter production to quark mass, using CMS data.
Contribution
It introduces a novel search strategy for dark matter in association with top quarks, emphasizing scalar interactions proportional to quark mass, with analysis of CMS data at 8 TeV.
Findings
No significant excess observed over background
Limits set on dark matter production cross-section
Constraints on scalar interaction models
Abstract
A search for dark matter produced in association with a top quark pair is presented. The search is performed using 19.7 of proton-proton collisions recorded at a center of mass energy of 8 TeV with the CMS detector at the LHC. The signature investigated is top quark pairs in the semi-leptonic final state plus missing transverse energy. This work focuses in particular on dark matter production through scalar interaction where a proportionality to the quark mass is expected.
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Taxonomy
TopicsDark Matter and Cosmic Phenomena · Particle physics theoretical and experimental studies · Cosmology and Gravitation Theories