One of the first observations of a W particle. Electronic display of the results of a high-energy proton-antiproton collision in the UA1 detector at CERN in 1982-3. The white track (going from the centre towards bottom right & ending with a pink arrow) is due to a high-energy electron which,along with an invisible neutrino,carries energy equivalent to the mass of the short-lived W particle. The yellow tracks are other particles produced from the original proton- antiproton collision. The discovery of the W particle,one of the carrier particles of the weak nuclear force,was announced at CERN,the European particle physics lab near Geneva,in January 1983 | |
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Crédit: | Science Photo Library / Cern |
Taille de l’image : | 3148 px × 2122 px |
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