Journal article
Measurement of the spin correlation parameter Aoonn(pp) in a large angular region between 0.88 and 2.7 GeV
Nuclear physics. B, Vol.294(C), pp.1013-1021
1987
DOI: 10.1016/0550-3213(87)90619-5
Abstract
The spin correlation parameter Aoonn for pp elastic scattering was measured at 0.88, 1.1, 1.3, 1.6, 1.8, 2.1, 2.4 and 2.7 GeV using the SATURNE II polarized proton beam and the Saclay frozen spin polarized target. At the first two energies, the new measurements at θCM < 50° complete our previous data from 45° to 90°. Between 1.3 and 2.7 GeV the measurements were performed in two overlapping angular regions covering together the CM angles from 28° (at the lower energies) or 18° (at the highest energy) to > 90°. At all energies above 1.3 GeV the angular distribution shows a dip at fixed four-momentum transfer −t ∼ 0.90 (GeV/c)2. The value of Aoonn (θCM = 90°) decreases from Aoonn (90°) ≅ 0.57 at 0.88 GeV to Aoonn (90°) ≅ 0.35 at 2.7 GeV. However, the large value found at 1.8 GeV indicates that the energy dependence is not monotonic.
Details
- Title: Subtitle
- Measurement of the spin correlation parameter Aoonn(pp) in a large angular region between 0.88 and 2.7 GeV
- Creators
- F Lehar - DPhPE-SEPh, CEN-Saclay, FranceA De Lesquen - DPhPE-SEPh, CEN-Saclay, FranceJ.P Meyer - DPhPE-SEPh, CEN-Saclay, FranceL Van Rossum - DPhPE-SEPh, CEN-Saclay, FranceP Chaumette - DPhPE-STIPE, CEN-Saclay, FranceJ Derégel - DPhPE-STIPE, CEN-Saclay, FranceJ Fabre - DPhPE-STIPE, CEN-Saclay, FranceJ.M Fontaine - DPhN/ME, CEN-Saclay, FranceF Perrot - DPhN/ME, CEN-Saclay, FranceJ Ball - Laboratoire National Saturne, CEN-Saclay, FranceC.D Lac - Laboratoire National Saturne, CEN-Saclay, FranceA Michalowicz - LAPP, Annecy, FranceY Onel - University of GenevaD Adams - University of California, Los AngelesJ Bystricky - University of California, Los AngelesV Ghazikhanian - University of California, Los AngelesC.A Whitten - University of California, Los AngelesA Penzo - INFN, Trieste, Italy
- Resource Type
- Journal article
- Publication Details
- Nuclear physics. B, Vol.294(C), pp.1013-1021
- DOI
- 10.1016/0550-3213(87)90619-5
- ISSN
- 0550-3213
- eISSN
- 1873-1562
- Publisher
- Elsevier B.V
- Language
- English
- Date published
- 1987
- Academic Unit
- Physics and Astronomy
- Record Identifier
- 9984199772602771
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