Abstract

Neutrino reactions in nuclei are very interesting for a number of reasons. They present us with the very few opportunities which we have for studying neutrino reactions in a laboratory setting under controlled conditions. In particular iron is an unusually suitable reaction to study. Virtually every neutrino experiment has some background from iron used in shielding or for tanks and other equipment. This is particularly true for the KARMEN experiments1 which make use of a 6000 ton steel shield for their calorimeter. The KARMEN collaboration2 considers neutrino reactions in iron to be one of its most serious backgrounds. They have extracted some results for electron neutrino cross sections on 56Fe averaged over the Michel spectrum which have been already published3,4. The interest in neutrino reactions in iron however is not merely as a background. There has been an experiment involving high energy neutrino and antineutrino reactions in iron5. Furthermore there is a new experiment6 for neutrino reactions in iron which will start in the near future and will run from threshold to about 3 GeV. These experiments both planned and already performed will provide useful information on how present calculations, which seem to work well for neutrino reactions in 12C up to a few hundred MeV might be extended. In particular it may be possible to make use of already determined structure functions to extend our present calculations. Besides obtaining the cross sections for the reactions ve +56 Fe → e+X,vμ+56Fe → μ+X,ve,+56Fe → e+X , and vμ+Fe → μ+X , _

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