Category Archives: CERN

25 years of ATLAS

Based on the submission date of the Letter of Intend, 1 October 1992, the ATLAS Experiment will turn 25 years this autumn and I will have the pleasure to organise a live event on the actual birthday as well as an internal celebration during the Bratislava ATLAS Week in October … while getting caught in this, I noticed that, based on this calculation, I have been with ATLAS for half of its life (and a third of mine) by then.

A bit of nostalgia –
W-boson mass

Today Maarten Boonekamp, whom I had the pleasure to work with for my master thesis, presented the latest update on the measurement of the W-boson mass with ATLAS. In fact a subject I wrote part of thesis about and had my name on a physics paper for the first time. Not yet the precision predicted in the paper, but it’s also not yet the stats and certainly not the centre-of-mass energy assumed therein. Yet it’s a competitive measurement (80.370 GeV ± 0.019 GeV) in full agreement with the Standard Model.

A conference note will be published today and a paper is to follow soon.

Gettin’ ready for the Open Day


We’re slowly getting ready for the Open Day in Garching, taking place on Saturday, 22 October 2016.

Visit us between 11 am and 6 pm or join our free screening of ‘Particle Fever‘ at 6 pm.
We’ll have a great programme, including a BYOPD event, presentations of live events and data from CERN, a cosmic-ray detector, the large ATLAS LEGO model and more …

Find some more details here, here or here.