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Your search keyword '"R.L. Shypit"' showing total 6 results
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6 results on '"R.L. Shypit"'

1. First measurement of Donon in pbar-p elastic scattering

Author

R.L. Shypit, J.R. Hall, R. Birsa, R. Hess, P. Schiavon, D.V. Bugg, F. Tessarotto, E. Heer, C.I. Beard, J.C. Kluyver, Anne-Laure Martin, Aldo Penzo, L. Linssen, R.A. Kunne, J. M. Rieubland, A.S. Clough, Antonio Villari, C. Lechanoine-Leluc, Franco Bradamante, Y. Onel, T. O. Niinikoski, S. Dalla Torre-Colautti, M. Giorgi, A. Rijllart, J.A. Edgington, D. Rapin, K. Bos, R. A., Kunne, C. I., Beard, Birsa, Renato, K., Bo, Bradamante, Franco, D. V., Bugg, A. S., Clough, DALLA TORRE, Silvia, J. A., Edgington, Giorgi, Marcello, J. R., Hall, E., Heer, R., He, J. C., Kluyver, C., Lechanoine Leluc, L., Linssen, Martin, Anna, T. O., Niinikoski, Y., Onel, A., Penzo, D., Rapin, J. M., Rieubland, A., Rijllart, Schiavon, Paolo, R. L., Shypit, F., Tessarotto, and A., Villari

Subjects
Nuclear physics, Physics, Elastic scattering, Nuclear and High Energy Physics, depolarization parameter, pbar-p elastic scattering, LEAR, Theoretical models, Depolarization, Atomic physics, Nuclear Experiment
Abstract

The depolarization parameter Donon in p p elastic scattering has been measured at LEAR for thirteen momenta between 679 and 1550 MeV/c in the backward angular region. Striking disagreement with theoretical models is observed.

Published
1991

2. Measurement of antiproton-proton small-angle elastic scattering at low momentum

Author

C. Lechanoine-Leluc, D. Rapin, S. Dalla Torre-Colautti, C.I. Beard, A.S. Clough, R. Birsa, R.L. Shypit, J.C. Kluyver, Y. Onel, L. Linssen, J.R. Hall, D.V. Bugg, P. Schiavon, Antonio Villari, M. Giorgi, Franco Bradamante, Aldo Penzo, R.A. Kunne, Alan D. Martin, K. Bos, L., Linssen, C. I., Beard, Birsa, Renato, K., Bo, Bradamante, Franco, D. V., Bugg, A. S., Clough, DALLA TORRE, Silvia, Giorgi, Marcello, J. R., Hall, J. C., Kluyver, R. A., Kunne, C., Lechanoine Leluc, Martin, Anna, Y., Onel, A., Penzo, D., Rapin, Schiavon, Paolo, R. L., Shypit, and A., Villari

Subjects
Physics, Elastic scattering, Nuclear and High Energy Physics, pbar p elastic scattering, Large Hadron Collider, Proton, LEAR, forward direction, Momentum, Amplitude, Antiproton, Dispersion relation, Coulomb, Physics::Accelerator Physics, High Energy Physics::Experiment, Atomic physics, Nuclear Experiment, Particle Physics - Experiment
Abstract

Two high statistics measurements of antiproton-proton small-angle elastic scattering, at p = 233 MeV/c and p = 272 MeV/c, are presented. The measurements were carried out at the LEAR facility at CERN. By the Coulomb-nuclear interference method, values are obtained for the real-to-imaginary ratio ρ of the pp forward nuclear scattering amplitude and for its exponential slope b: ρ = + 0.041 ± 0.026 and b = 71.5 ± 4.5 (GeV/c)−2 at 233 MeV/c and ρ = −0.014 ± 0.027 and b = 47.7 ± 2.7 (GeV/c)−2 at 272 MeV/c. The method to derive these values is discussed in detail and so are the uncertainties contributing to their systematic error. The results are compared with predictions from forward dispersion relation calculations and with predictions from pp potential models.

Published
1987

3. ASL, ALL and ANO for NN → πD at 492, 729 and 796 MeV

Author

A.S. Clough, K. H. McNaughton, M. W. McNaughton, C. A. Davis, P. J. Riley, N. M. Stewart, Richard R. Silbar, D. M. Lee, D.V. Bugg, R.L. Shypit, and C. L. Hollas

Subjects
Nuclear physics, Physics, Nuclear reaction, Nuclear and High Energy Physics, Amplitude, Nuclear magnetic resonance, Computer Science::Computation and Language (Computational Linguistics and Natural Language and Speech Processing), Nuclear Experiment, Spin-½
Abstract

Data on spin correlation parameters ASL, ALL and ANO for pp → π+d are reported at 492, 729 and 796 MeV. The 729 MeV ASL data are important in stabilising the amplitude analysis near that energy.

Published
1988

4. Polarization at small angles in elastic p and C scattering at 550 MeV / c

Author

J.R. Hall, D. Rapin, Anne-Laure Martin, C. Lechanoine-Leluc, R.L. Shypit, S. Degli Agosti, J.C. Kluyver, R. Hees, C.I. Beard, M. Giorgi, Y. Onel, Franco Bradamante, P. Schiavon, K. Bos, S. Dalla Torre-Colautti, Aldo Penzo, Antonio Villari, R.A. Kunne, E. Heer, R. Birsa, D.V. Bugg, L. Linssen, and A.S. Clough

Subjects
Physics, Nuclear physics, Nuclear and High Energy Physics, Azimuthal asymmetry, Scattering, Antiproton, Physics::Accelerator Physics, High Energy Physics::Experiment, Atomic physics, Nuclear Experiment, Polarization (waves)
Abstract

Results are reported on the azimuthal asymmetry of antiprotons of ∼550 MeV / c , doubly scattered at small angles from protons and carbon. The measured asymmetries are small, statistically compatible with zero, and give polarization parameters smaller than those foreseen by some N N potential models.

Published
1985

5. Asymmetry in p¯p elastic scattering

Author

J.C. Kluyver, R. Hess, R.L. Shypit, F. Tessarotto, E. Heer, C.I. Beard, Anne-Laure Martin, S. Dallatorre-Colautti, K. Bos, D. Rapin, J. M. Rieubland, J.R. Hall, A.S. Clough, Y. Onel, T. O. Niinikoski, S. Degli-Agosti, D.V. Bugg, R. Birsa, Antonio Villari, L. Linssen, P. Wells, Franco Bradamante, P. Schiavon, A. Rijllart, J.A. Edgington, Aldo Penzo, R.A. Kunne, and C. Lechanoine-Leluc

Subjects
Physics, Elastic scattering, Nuclear and High Energy Physics, Condensed matter physics, Phonon scattering, media_common.quotation_subject, Nuclear Theory, Physics::Accelerator Physics, Mott scattering, Nuclear Experiment, Asymmetry, Beam (structure), media_common
Abstract

Asymmetries A 0 n have been measured at LEAR for s ¯ s elastic scattering for 15 beam momenta from 497 to 1550 MeV/ c .

Published
1988

6. p̄p total cross sections below 420 MeV/c

Author

J.R. Hall, D. Rapin, A.S. Clough, Franco Bradamante, P. Schiavon, Aldo Penzo, R.A. Kunne, R.L. Shypit, S. Dalla Torre-Colautti, Y. Onel, Antonio Villari, Catherine Leluc, E. Heer, L. Linssen, Alan D. Martin, K. Bos, R. Birsa, D.V. Bugg, J.C. Kluyver, D. V., Bugg, J., Hall, A. S., Clough, R. L., Shypit, K., Bo, J. C., Kluyver, R. A., Kunne, L., Linssen, Birsa, Renato, Bradamante, Franco, DALLA TORRE, Silvia, Martin, Anna, A., Penzo, Schiavon, Paolo, A., Villari, E., Heer, C., Leluc, Y., Onel, and D., Rapin

Subjects
Nuclear physics, Cross section (geometry), Physics, Nuclear and High Energy Physics, pbar p total cross-section, Nuclear Theory, LEAR, baryonium, Physics::Accelerator Physics, Nuclear Experiment, Resonance (particle physics)
Abstract

pp total cross sections have been measured from 220 to 413 MeV/ c in small (⩽ 10 MeV/ c ) steps of momentum with statistics of ± 0.5 %. There is no evidence for structure in the cross section, and a limit of 8 mb MeV/ c 2 is set with 90% confidence on the strength of any narrow resonance down to 250 MeV/ c .

Published
1987

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