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Probing top-philic sgluons with LHC Run I data

par Beck, Lana;Blekman, Freya;Dobur, Didar ;Fuks, Benjamin;Keaveney, James;Mawatari, Kentarou
Référence Physics letters. Section B, 746, page (48-52)
Publication Publié, 2015-06

Article révisé par les pairs

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Résumé :

Many theories beyond the Standard Model predict the existence of colored scalar states, known as sgluons, lying in the adjoint representation of the QCD gauge group. In scenarios where they are top-philic, sgluons are expected to be copiously pair-produced at the LHC via strong interactions with decays into pairs of top quarks or gluons. Consequently, sgluons can be sought in multijet and multitop events at the LHC. We revisit two LHC Run I analyses in which events featuring either the same-sign dileptonic decay of a four-top-quark system or its single leptonic decay are probed. Adopting a simplified model approach, we show how this reinterpretation allows us to extract simultaneous bounds on the sgluon mass and couplings.