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Journal of High Energy Physics

, 2015:76

First Online: 12 October 2015Received: 16 July 2015Accepted: 19 September 2015Abstract

We study a number of U1X models featuring a Dirac fermion dark matter particle. We perform a comprehensive analysis which includes the study of corrections to the muon magnetic moment, dilepton searches with LHC data, as well as direct and indirect dark matter detection constraints. We consider four different coupling structures, namely U1B−L, U1d−u, U1universal, and \ \mathrm{U}{1} {10+\overline{5}} \, all motivated by compelling extensions to the standard model. We outline the viable and excluded regions of parameter space using a large set of probes. Our key findings are that i the combination of direct detection and collider constraints rule out dark matter particle masses lighter than ∼ 1 TeV, unless rather suppressed Z-fermion couplings exist, and that ii for several of the models under consideration, collider constraints rule out Z masses up to ∼ 3 TeV. Lastly, we show that we can accommodate the recent Diboson excess reported by ATLAS collaboration within the U1d−u model.

KeywordsBeyond Standard Model Cosmology of Theories beyond the SM ArXiv ePrint: 1506.06767

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Autor: Alexandre Alves - Asher Berlin - Stefano Profumo - Farinaldo S. Queiroz

Fuente: https://link.springer.com/

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