Discovery of the New Particle J *
نویسندگان
چکیده
We present a description of an experiment carried out at the 30 GeV Alternating Gradient Synchrotron of the Brookhaven National Laboratory. The experiment used a high intensity slow extracted proton beam of between 101° and 2 • 1012 protons per pulse and measured the e+e-mass spectrum from the reaction p+ Be~e+e-+ X. The result of this experiment shows the production of a new type of particle, J, which decays to e+e-with a width consistent with zero.
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تاریخ انتشار 2002