Category Archives: Niels Bohr Institue

15 years in ATLAS

ATLAS, Berlin, CERN, Copenhagen, Denmark, DESY, France, Geneva, Germany, Humboldt Universität, LHC, LLP, LMU, Munich, Niels Bohr Institue, Outreach, Physics, Switzerland

Fifteen years ago, Tuesday 8 March 2005 at 9:57am, I received my CERN account, to start working for the ATLAS Experiment.

What started as an internship – chosen because of a lack of courses in the field I originally planned to pursuit, the physics of macromolecules – in the high-energy-physics group at the Niels Bohr Institute in Copenhagen, turned into a stay at CERN during the Summer Student Programme and a Master’s thesis about the electron identification with the ATLAS transition-radiation tracker (internal) together with studies on a precision measurement of the W-boson mass.

During my PhD at Deutsches Elektronen-Synchrotron DESY in Zeuthen and Humboldt-Universität zu Berlin and various short stays at CERN I was mainly working on the commissioning of the ATLAS pixel detector (internal) and data-driven algorithms to determine the W+Jets background in events with pair-produced top quarks, and was involved in the startup of the German National Analysis Facility.

Going back to the Niels Bohr Institute as a postdoc, I started working on searches for unconventional signatures and long-lived particles and got stuck with that ever since.

I started out looking for heavy, charged long-lived particles, an analysis I continued also after moving to LMU Munich in 2014.  Since then, I had the pleasure of leading two ATLAS physics subgroups – supersymmetry with R-parity-violating and long-lived signatures as well as exotics with unconventional and exotic Higgs decays – and joined a community effort in documenting the current status and harmonise searches for long-lived particles at the LHC. Amongst other things, I am currently also working on searches for Soft Unclustered Energy Patterns as signatures of strongly coupled Hidden Sectors and just finished my habilitation.

Besides physics analysis, especially looking for long-lived particles, I was always interested in science communication and education and have been involved in outreach projects since 2006. Highlights were and are certainly the design of the ATLAS LEGO model in 2011, the creation of the ‘Build Your Own Particle Detector‘ programme in 2013 and running it since, the coordination of the ATLAS contribution to the 2019 CERN Open Days, and the still ongoing work on a new ATLAS Visitor Centre. Since 2018, I am also an Education & Outreach coordinator for the ATLAS Collaboration.

I hope to have quite a few more years within ATLAS and other collaborations …

O’zapft is

Copenhagen, LMU, Munich, Niels Bohr Institue, Physics

After spending yet another great time in the beautiful city of Copenhagen, the time has come to say good bye. There have been a few ideas, even fewer possibilities and finally only one decision. And … tada, the next step in my/our life will be the capital of Bavaria, Munich.

The LMU Munich has kindly offered me a position as a lecturer (Akademischer Rat) working on the ATLAS Experiment for the next three years (with the option of six years in total), which I just accepted.

So if all the bureaucracy doesn’t kill me/us on the way and we manage to find a place to stay in time, we’ll be in town by the 1st of April 2014.

When I am done rearranging my web site, the Copenhagen Guest Couch will (hopefully) be transformed into a Munich Guest Couch, of course.

What a week(end)

Copenhagen, Fotohalbmarathon, Manchester, Niels Bohr Institue, Outreach, Physics, UK

Quite an interesting week(end) that just ended. Besides the follow-up work for the CERN Open Days (deciding in winners, cleaning up, preparing shipments, etc.), I was preparing the Kulturnatten (open days) event of the particle physics group at the Niels Bohr Institute. Unfortunately the central organisation did not spend as much time thinking about the event as we did. Anyways, I think we made the best out of it and it actually went quite well. We had one auditorium with usual stuff like posters, videos and the LEGO models, plus our new self-made cloud chamber, which worked like charm for several hours. I spent almost four hours straight giving talks about ATLAS and more. A fact my voice seems to thank me for now :(

That done, and after only three and a half hours of sleep, we had the 2013 Fotohalbmarathon coming up on Saturday. This year we ended up with in total twelve teams taking part in the end. Some entered late, some had to cancel on short notice. But it’s a nice number, and people seemed to have enjoyed it.

After that, I started preparing my trip to Manchester, which I am going to start in only a few hours. Once more, I had to disassemble and pack the original Copenhagen LEGO model and I will take it on the plane in a bit.

Together with some people from Manchester, I will rebuild it tomorrow and on Wednesday non other than Nobel Prize winner Peter Higgs is going to sign it :)
I am admittedly quite excited :)