With the DARKJETS team, we have introduced and successfully published a search for particles that propagate the interactions between standard matter and dark matter, using a new real-time analysis technique for the ATLAS detector, called "Trigger Level Analysis". With this technique, we have reached a sensitivity to these particles with masses between 400 GeV and 1 TeV that would not be achievable using traditional analysis techniques. The results were published in Physics Review Letters. We then pushed the reach of the ATLAS detector for these particles further, using traditional data taking but a process that had never before used at the LHC in the search for these particles. This extended the sensitivity to these dark matter mediators to masses above 250 GeV, in a publication on Physics Letters B.
We have searched for new particles in the context of Supersymmetry using a technique that is complementary to both the approaches above and can reach masses of 100 GeV, published in EPJC. As a follow-up of that search, we also have started a future-looking search program for new particles from dark matter models whose complexity resembles that of the Standard Model, and the first paper in this line of research is being finalised.
As a necessary step for the success of all these results, the team has been very active in the operations and performance of the experiment, with tasks that benefitted the entire collaboration such as shifts to monitor the quality of the data and contributions to the operations, calibration and performance of the experiments, leading to 3 peer-reviewed publications. The team members were appointed to positions of responsibility in ATLAS data taking and computing for the community.
Finally, the results have been interpreted in terms of dark matter models and compared to different experiments. The broad adoption of those models by the global community and their use as standard benchmarks for comparisons of different searches and experiments was enabled by the PI and team, via the leadership of international prioritisation efforts and the creation of different initiatives that connect different communities of researchers investigating the nature of dark matter (e.g. Update of the European Strategy of Particle Physics, Initiative for Dark Matter in Europe and Beyond, Snowmass for the input to the prioritisation of US particle physics). These efforts led to 7 peer-reviewed papers, a whitepaper for the European Strategy of Particle Physics, and five letters of intent that will lead to Snowmass whitepapers.
