B-Meson Decay – Toying with LHCb Data

Particle physics is kind of a hobby of mine and since some time it is even possible to get access to some of the data generated with the LHC accelerator at CERN.
One such dataset is from the LHCb experiment, which gives you access to data about decays of B-mesons to three hadrons. The largest file is some 636MB (B2HHH_MagnetDown.root) which I chose to start exploring.

Exploring means that at the start I do not know exactly what kind of data is in there. So I had to do some exploring and decided to start with just reading out some data and drawing graphs with it. For starters, I am not primarily interested in the physics, but in how to work with the data and what I can use it for. So I study the toosl and the programming, but it is clear that at the same time I analyse the data, I will have to study the physics behind it, otherwise it is not possible to make useful evaluations.

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CERN OpenDays 2019 – LHCb Site

CERN had its OpenDays on September 14 and 15. As the LHC is in Long Shutdown 2 (LS2) for upgrades until early 2021, this was a good possibility for CERN to present itself and its work to the public.

Both days drew huge crowds and lines for underground visits were long – at one point waiting times for ATLAS visits were 3 hours.

I arrived on Sunday, September 15 shortly before 10 a.m. and after getting my wrist band at the check-in tent went straight for transport to remote site – I already know part of the Meyrin site, and Atlas was already overcrowded so I went to the bus stop in search of Bus F, to go to the CMS Experiment site. Unfortunately, I couldn’t find this bus, so I decided to jump on the one going to the LHCb site. Good choice!

No Beam! LHCb Command Center
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