Two Higgs-Doublet Dark Matter Model with Pseudoscalar Mediator
==============================================================

*Jon Butterworth, Louie Corpe, Martin Habedank, Deepak Kar, Priscilla Pani, Andrius Vaitkus*

`This model <https://github.com/LHC-DMWG/model-repository/tree/main/models/Pseudoscalar_2HDM>`_ :cite:`Bauer:2017ota` is well known and used within the 
`LHC Dark Matter working group <https://lpcc.web.cern.ch/content/lhc-dm-wg-dark-matter-searches-lhc>`_, and by ATLAS :cite:`Aaboud:2019yqu` and CMS :cite:`Sirunyan:2018gdw`.

The major results and discussion are in 
**A study of collider signatures for two Higgs doublet models with a Pseudoscalar mediator to Dark Matter** :cite:`Butterworth:2020vnb` 
(JMB, MH, PP, AV), which supersedes a study of the model presented in the Les Houches 2019 proceedings :cite:`Brooijmans:2020yij`: 
(*Sensitivity of LHC measurements to a two-Higgs-doublet plus pseudoscalar DM model*).

The model was also used in *Determining sensitivity of future measurements to new physics signals* (LC, DK), in the same proceedings.

For convenience, the model files are also available in the Contur installation in the 
Pseudoscalar_2HDM directory `here <https://gitlab.com/hepcedar/contur/-/tree/main/data/Models/DM>`_

Below is Figure 2 of the paper (see the paper for explanation) along with an update for Contur 2.2.x/Rivet 3.1.4. The increased sensitivity
due to the ATLAS Run 2 measurements and the dilepton search can be easily seen.

.. figure:: images/fig_2b.png
            :scale: 80%
.. figure:: images/dominantPools0_corr.png
            :scale: 60%