Affiliation:
1. University College London
2. Humboldt University of Berlin
3. Deutsche Elektronen-Synchrotron DESY
Abstract
Two Higgs doublet models with an additional pseudoscalar particle coupling to the Standard Model and
to a new stable, neutral particle, provide an attractive and fairly minimal route to solving the problem
of Dark Matter. They have been the subject of several searches at the LHC.
We study the impact of existing LHC measurements on such models, first in the benchmark regions addressed by searches
and then after relaxing some of their assumptions and broadening the parameter ranges considered.
In each case we study how the new parameters change the potentially visible signatures at the LHC, and identify
which of these signatures should already have had a significant impact on existing measurements.
This allows us to set some first constraints on a number of so far unstudied scenarios.
Funder
Helmholtz-Gemeinschaft
Horizon 2020
Science and Technology Facilities Council
Cited by
10 articles.
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