Z to mu mu in ATLAS too

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    Compare this event to the one from last week. Both are candidates for the decay of a Z-boson into a muon pair (red tracks). The calculated masses are a little different but both are near the Z mass. This is not unusual; it is part of the nature of experimental particle physics. This view shows part of the ATLAS detector, including its framework and the huge toroidal magnets used to nudge the paths of the muons. This deflection gives us the data we need to calculate the mass of the Z-boson from which they came.
    Copyright 2010 The ATLAS Experiment at CERN

    Knusper, WhishingOnAsTar!, and 1 other people added this photo to their favorites.

    1. Knusper 57 months ago | reply

      great stuff... data from LEP is used at our university in courses to calculate the Z0 mass from Z->ll ... one has first to make selection criteria, so that one can be sure he has only the right events...

      interesting stuff!! lovin' it!

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