Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
8141755 | Physics of the Dark Universe | 2018 | 11 Pages |
Abstract
The sensitivity of the LHC experiments to the associated production of dark matter with a single top is studied in the framework of an extension of the standard model featuring two Higgs doublets and an additional pseudoscalar mediator. It is found that the experimental sensitivity is dominated by the on-shell production of a charged Higgs boson, when this assumes a mass below 1TeV. Dedicated selections considering one and two lepton final states are developed to assess the coverage in parameter space for this signature at a centre-of-mass energy of 14TeV assuming an integrated luminosity of 300Â fbâ1. For a pseudoscalar mediator, a, with mass 150GeV
and maximally mixed with the pseudoscalar of the two Higgs doublets, all values of tanβ except for the range 3-15 can be excluded at 95% CL, if the H± mass is in the range 300GeV-1TeV. This novel signature complements the parameter space coverage of the mono-Higgs, mono-Z and ttÌ+ETmiss signatures considered in previous publications for this model.
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Astronomy and Astrophysics
Authors
Priscilla Pani, Giacomo Polesello,