# Detection of W and Z bosons

What specific behaviour confirmed the existence of the W and Z bosons at the UA1 and UA2 experiments?

Thanks!

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See an UA2 paper from 1983 about Z0, ccdb4fs.kek.jp/cgi-bin/img/allpdf?198308375 , as an example. They found 8 events with the right mass around 91 GeV that decayed into e+ e-, relatively to the non-Z background of 0.7 events or so only. So clearly there had to be something at the mass indicated and it agreed with the electroweak theory. – Luboš Motl May 14 '11 at 6:32
@ Luboš Motl: most enlightening, thank you very much. – Richard Terrett May 14 '11 at 6:47