11 research outputs found

    np-elastic analyzing power A(N0) at 485 and 788 MeV

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    Journals published by the American Physical Society can be found at http://publish.aps.org/Measurements are reported for the np-elastic analyzing power from 30 degrees to 128 degrees c.m., at 485 and 788 MeV, with a typical precision of 0.005 and absolute accuracy of 2%. Results strengthen the isospin-0 phase-shift analysis, and clarify the absolute normalization of the polarized neutron beam and the isospin-0 inelasticity

    Analyzing Power Measurement for Forward Angle N-P Scattering at 790 Mev

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    Journals published by the American Physical Society can be found at http://publish.aps.org

    np elastic spin-transfer measurements at 485 and 635 MeV

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    Journals published by the American Physical Society can be found at http://publish.aps.org/We have measured the spin-transfer parameters K(LL), K(SL), K(LS) and K(SS) at 635 MeV from 50-degrees to 178-degrees c.m. and at 485 MeV from 74-degrees to 176-degrees c.m. These new data have a significant impact on the phase-shift analyses. There are now sufficient data near these energies to overdetermine the elastic nucleon-nucleon amplitudes

    np-elastic analyzing power An0 and spin transfer Knn

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    Journals published by the American Physical Society can be found at http://publish.aps.org/We have measured the analyzing power A(NO) and the spin transfer K(NN) for np-elastic scattering from about 60-degrees to 170-degrees c.m. at 485, 635, and 788 MeV. The new data clarify previous discrepancies and complete the first-order determination of nucleon-nucleon elastic scattering at these energies

    Measurement of Spin-Correlation Parameters all and Asl in P-P Elastic-Scattering from 500 Mev to 800 Mev

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    Journals published by the American Physical Society can be found at http://publish.aps.org/The spin-correlation observable A(LL) for p-p elastic scattering has been measured at energies 589, 640, 692, 743, and 793 MeV, over a c.m. angular range between 20-degrees and 100-degrees. The spin observable A(SL) was also measured in this angular range at energies 640 and 793 MeV. At 488 MeV both the spin observables were measured, but only near the c.m. angle of 90-degrees. The data are compared with the predictions of several phase-shift analyses and previous measurements. The energy dependence of A(LL) for the c.m. angle of 90-degrees is also presented and shows no anomalous behavior. These data provide better angular coverage over five of the energies, with comparable or better statistical precision, than previous measurements of A(LL)

    H-2(p,n)2p Spin Transfer from 305 to 788 Mev

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    Journals published by the American Physical Society can be found at http://publish.aps.org/Measurements of the spin-transfer parameter K(LL) for H-2(p, n)2p at 0-degrees to calibrate the neutron-beam polarization clarify a normalization discrepancy affecting np data at LAMPF. The new data are in good agreement with theoretical predictions
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