The project has just finalised, and has been greatly successful.
My project started with 3 postdocs, and has been enhanced to 4 postdocs for the last 1.5 years in order to boost the work on P1.1 (reconstruction methods) and to get the analyses to publication.
Each of the postdocs worked on one of the different aspects of the project.
The main results achieved are:
- Novel event reconstruction methods, in particularly HyPER. HyPer has been published (Phys. Rev. D 111, 032004 (2025)), presented at various ATLAS-internal and community wide workshops and conferences, and has been implemented into the ATLAS software. This for example led to one of my postdocs work on FastFrames (
https://zenodo.org/records/15114280(öffnet in neuem Fenster)).
- Improved boosted top and Higgs tagging techniques. There results were presented at specific conferences and workshops discussing advancement in boosted tagging. While most of the achievements are internal to ATLAS, a public result can be found here:
https://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PUBNOTES/ATL-PHYS-PUB-2021-035/(öffnet in neuem Fenster)- Measurements of the top-highs Yukawa coupling and the probe for CP-properties: results in 2 and 4 tops have been published in scientific peer-reviewed journals, and presented at various workshops, conferences and in seminars. For 1top, the results are currently in the final stages of ATLAS-internal review before being published in peer-reviewed journals.
- The rare 4top process was observed (after we first achieved evidence, also as part of this project). This result was published and presented at various conferences, including Moriond and ICHEP. In particular, my postdoc Yang Qin, also got various seminar invitations, and the result got presented to the wider public in various articles.
- Several phenomenological studies have been performed together with theorists, all published in peer-reviewed articles. In particular, we worked on accidental symmetries in 2HDMEFT with Apostolos Pilaftsis, and with Eleni Vryonidou on novel observables in tH and ttH for probing new physics via EFTs.
- Searches for extended Higgs sectors have been performed, in particular in 4top events, which are published in peer-reviewed articles.
- The visibility all these different aspects of the project brought to my team has led to all my postdocs acquiring leadership positions within the ATLAS collaboration. Furthermore, all most PhD students and postdocs got invited for presenting ATLAS results at international conferences.
