Challenge Event 54


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Which Type of Event Is This?

Click on one of the following choices (Click below if you'd like to see good examples of the appropriate kind of event)
muon pair event (example muon pair events)
WW (lepton-neutrino/lepton-neutrino) event (example WW (lepton-neutrino/lepton-neutrino) events)
llgamma event (example llgamma events)
"four fermion" event (example "four fermion" events)

(next event) If you have correctly identified this event you can now go on to the next challenge event by clicking here.


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Terry Wyatt. March 1997.


































































































































































Sorry, this isn't an muon pair event.

Click here if you'd like to see good examples of muon pair events.

(challenge) Please go back to the challenge event and have another try!











































































































Sorry, this isn't an WW (lepton-neutrino/lepton-neutrino) event.

Click here if you'd like to see good examples of WW (lepton-neutrino/lepton-neutrino)events.

(challenge) Please go back to the challenge event and have another try!











































































































Sorry, this isn't an ll gamma event

Click here if you'd like to see good examples of ll gamma events.

(challenge) Please go back to the challenge event and have another try!











































































































Yes. Well done!

This is, indeed, a "four fermion" event.


(next event) Now go on to the next challenge event by clicking here, please.













































































































Terry Wyatt. March 1997.