Exampleelectron pairEvents

Events in which an electron-positron pair are produced are fairly easy to identify. We see a back-to-back pair of high momentum tracks pointing at high energy clusters of energy in the electromagnetic calorimeter.

Here are a couple of example events.

Example electron pairEvent No. 1

End-On View of Event

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Side View of Event

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Example electron pair Event No. 2

In the second example event the electrons strike the end-cap region of the detector.

End-On View of Event

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Side View of Event

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next event Some tau pair event examples.

events Identifying Events Containing a Particle-Antiparticle Pair.


Challenge II Challenge II

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