Constraining the strength and CP structure of dark production at the LHC: The associated top-pair channel

Buckley Matthew R.; Goncalves Dorival

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Constraining the strength and CP structure of dark production at the LHC: The associated top-pair channel

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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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《Physical review, D. Covering particles,fields,gravitation,and cosmology》 |2016年第3期|共7页
作者
Buckley Matthew R.; Goncalves Dorival;
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Rutgers State Univ, Dept Phys & Astron, POB 849, Piscataway, NJ 08854 USA;

Univ Durham, Dept Phys, Inst Particle Phys Phenomenol, Durham DH1 3LE, England;

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正文语种英语
中图分类粒子物理学;场论;
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Constraining the strength and CP structure of dark production at the LHC: The associated top-pair channel

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