This paper gives a detailed description of an experiment which studies the interactions of muon-type neutrinos in hydrogen and deuterium. The experiment was performed at the Zero Gradient Synchrotron using the wide-band neutrino beam incident on the Argonne 12-foot bubble chamber filled with hydrogen and deuterium. The neutrino energy spectrum peaks at 0.5 GeV and has a tail extending to 6 GeV. The shape and intensity of the flux is determined using measurements of pion yields from beryllium. The produced pions are focused by one or (for the latter part of the experiment) two magnetic horns. A total of 364000 pictures were taken with a hydrogen filling of the bubble chamber and 903000 with a deuterium filling. The scanning and other analyses of the events are described. The most abundant reaction occurs off neutrons and is quasi-elastic scattering vd +p-pp,. The separation of these events from background channels is discussed. The total and differentla] cross sections are analyzed to obtain the axial-vector form factor of the nucleon. Our result, expressed in terms of a dipole form factor, gives an axial-vector mass of 0.95 k 0 . 0 9 GeV. A comparison is made to previous measurements using neutrino beams, and also to determinations based upon threshold pion electroproduct~on experiments. In addition, the data are used to measure the weak vector form factor and so check the conserved-vector-current hypothesis.
D 2 fill, represent the first experimental study of neutrino interactions in pure hydrogen and deuterium.The full circulating beam of the ZGS was resonantly extracted with an efficiency of 65% and a spill time of ~20 //sec. On the average, 1.2We present an analysis of 153 events of the reaction vp-*\x~Tt*p at an average neutrino energy of 1 GeV. The results were obtained using the Argonne 12-ft hydrogen bubble chamber. The reaction is dominated by \x ~A ++ (1236) production for which the total cross section rises from threshold to a value of (0.74±0.18)x io" 38 cm 2 at E v &1.0 GeV. The production and decay angular distributions of the A ++ are given. There is no evidence for hadron-lepton mass enhancements.
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The results reported in this paper come from a K-p-formation experiment performed in the Argonne-Michigan 40-in. heavy-liquid bubble chamber. About 500 000 pictures were taken in a mixture of 80% propane (C3H,) and 20% Freon (C F,Br) with K-beam momenta between 730 and 900 MeV/c. Cross sections for the pure isospin states xO#, ~~$710, and Z%f)nO in the center-of-mass energy ranging from 1580 to 1720 MeV were measured. Cross-section measurements of the no#, AoVo, hOs+n-, and ,Zontn-final states were compared with previous data obtained using hydrogen bubble chambers to check the validity of our techniques. The cross-section normalization was performed using 7 decays to determine the kaon flux.The angular distributions for AO# and 2?ff are also presented and compared with previous measurements in hydrogen bubble chambers. A check of the technique used previously in hydrogen-bubble-chamber experiments to obtain the Pff angular distributions suggests some contamination in the hydrogen data from the multiple # final states. Our data are consistent with the AOnOsO final state being produced almost entirely through 2(1385)n, and the zOff no data with almost total A(1405)n production.
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