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Join us on a journey to the smallest pieces of matter! Learn what is happening 100 meters below the ground at the European Organization for Nuclear Research (CERN). At the Large Hadron Collider, a circular collider with a circumference of 27 kilometres, the experiments ALICE, ATLAS, CMS, and LHCb are installed. The following short video gives an impression of the start of a fascinating journey looking for the origin of mass, Dark Matter, and new phenomena such as Supersymmetry or Extra Dimensions.

Particle Physics is exciting research! You can take part in that research on the following pages. The analysis of data samples that have been recorded in 2011 with the ATLAS detector is waiting for you. Under the points in the main (upper) menu, you can choose between two different measurements with original data from the ATLAS experiment. They are called W-path and Z-path. The processing of each path requires about 90 minutes. There is a theoretical introduction at the beginning of each task. This is followed by exercises and the actual measurement. Afterwards you can evaluate and interpret your result.

Vælg W-stien eller Z-stien ovenfor. Og så skal vi lave partikelfysik fra det 21. århundrede!