Review Of Multilepton Production In Neutrino Nucleon Interactions PDF Download

A review is given of particle production by neutrinos in charged-current inclusive and exclusive channels. The production rates for various particles in neutrino-nucleon interactions at a beam energy of 25 GeV are compared. The mesons are, of course, dominated by pion production. The p°(760) rate is an order of magnitude smaller. Strange and charm pseudoscalar mesons are a further factor of two down in rate. The strange vector mesons are suppressed by more than an order of magnitude relative to K° production; however, the charmed D*(2010) is only a factor of two smaller in rate than the D°(1860). With regards to the baryons, most of them are, of course, nucleons. The .lambda.° and Y*(1385) rates are down by one and two orders of magnitudes, respectively. The lower limit on the charmed .sigma./sub c//sup + +/ baryon rate is similar to the Y*(1385) rate. Finally, the quasielastic and one-pion production exclusive channels have about the same cross section as that of the D*; associated production of strange particles in the .nu.n .-->. .mu.−K+.lambda. channel and the .delta. S = +.delta cap omega. process .nu.p .-->. .mu.−pK+ are down by factors of five and twenty, respectively, compared to the quasielastic cross section.