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arXiv · 1511.06451

Constraining the Strength and CP Structure of Dark Production at the LHC: the Associated Top-Pair Channel

Matthew R. Buckley·Dorival Goncalves
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Abstract

We consider the production of dark matter in association with a pair of top quarks, mediated by a scalar or pseudoscalar particle in a generic Simplified Model. We demonstrate that the difference of azimuthal angle between the two leptons $\Delta \phi_{ll}$, in the dileptonic top decay mode, can directly probe the CP-properties of the mediator. We estimate the constraints to strength and CP-structure of dark matter production for these well-motivated Simplified Models from the LHC Run II.

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Matthew R. Buckley, Dorival Goncalves. 2015-11-19. Constraining the Strength and CP Structure of Dark Production at the LHC: the Associated Top-Pair Channel. https://doi.org/10.1103/physrevd.93.034003

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