Browsing by Author "Mietinen, Hannu E."

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    A Monte Carlo study of high transverse energy triggers in PP collisions at Plab=400 Gev/c
    (1983) Naudet, Charles Joseph.; Mietinen, Hannu E.; Duck, Ian M.; Hannon, James P.
    We have studied the properties of typical inelastic final states in pp collisions at =4 Gev/c under triggering conditions similar to those used in actual jet experiments . The events were generated by a Monte Carlo method 'which employed experimentally observed multiplicity and inclusive momentum distributions and constrained all the events to conserve momentum and energy. We find that a requirement of high transverse energy in a given solid angle selects mostly very high multiplicity events. Some experimentally observed momentum correlations seem to be of kinematical orgin and the triggered events have a similar transverse energy spectrum, but a less coplanar event structure than what is observed in experimental data.
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    Measurement of spin parameters A and Ann in np and pp elastic scattering at 6 G3V/c
    (1981) Calkin, Mark M.; Mietinen, Hannu E.; Duck, Ian M.; Roberts, Jabus B.
    The spin parameters A and Ann have been measured for np and pp elastic scattering at 6 GeV/c using a 12 GeV/c polarized deuteron beam and a polarized proton target at the Argonne ZGS. The recoil proton was measured by a conventional magnetic spectrometer, while the scattered neiitron/proton was detected in a brass-scintillator neutron converter/detector. Clean elastic signals were seen in both reactions. Our results on pp elastic scattering show that A and Ann are small and positive, in agreement with previous measurements. In np elastic scattering, we find that Ann -1% over the t-range .25<-t<.6 (GeV/c)2.