Author/Authors :
Ball، نويسنده , , J. and Combet، نويسنده , , Josep M. and Sans-Coma، نويسنده , , J.-L. and Benda، نويسنده , , B. and Chaumette، نويسنده , , P. and Derégel، نويسنده , , J. and Durand، نويسنده , , G. and Dzyubak، نويسنده , , A.P. and Gaudron، نويسنده , , C. and Lehar، نويسنده , , F. and Lesquen، نويسنده , , A. and Kasprzyk، نويسنده , , T.E. and Janout، نويسنده , , Z. and Khachaturov، نويسنده , , B.A. and Matafonov، نويسنده , , V.N. and Usov، نويسنده , , Yu، نويسنده ,
Abstract :
A SATURNE polarized target has been used for nucleon-nucleon elastic scattering and transmission experiments for 15 years. Continuous improvements resulted in a flexible and reliable facility for spin physics. The polarized proton target was a 70 cm3 cartridge loaded with pentanol-2, a promising material according to the results obtained. The new acquisition system and data processing was based on the LabView/PC software and increased the accuracy of polarization measurements. For a polarized neutron target, two cartridges loaded with 6LiD and 6LiH were set in the refrigerator and could be quickly inserted in the beam. Results from the the first experiments using 6Li materials in quasielastic pp or pn analyzing power measurements are compared with the same observables measured in free nucleon-nucleon scattering using polarized proton targets. The angular resolution distributions for θCM determination and azimuthal coplanarity are shown for different targets in nucleon-nucleon scattering. A comparison of analyzing power results for elastic and quasielastic scattering suggests that the contribution of inelastic processes to quasielastic pn scattering may be suppressed by additional constraints.
