Angular dependence of theppelastic scattering spin correlation parameterA00nnbetween 0.8 and 2.8 GeV. II. Results for higher energies

Proton-proton scattering above 3 GeV/c

“…polarized target where the direction is defined with respect to the proton beam. Extensive measurements of A N N were done at SATURNE [29,30,78] and at COSY-EDDA [79]. The double polarization observable C N N , or spin correlation parameter, was measured [66] at ZGS ANL.…”

“…Table 5. Unfortunately, the more recent SATURNE measurement [29,30] does not cover the region of forward angles. In general, the SAT-URNE data do not indicate any structures.…”

“…Our Regge model predicts some structure in the t-dependence of the double polarization parameter A N N at |t|≤1 GeV 2 , specifically a clear minimum around |t|=0.5 GeV 2 . The COSY- [29,30], the squares are from ZGS ANL [66], and the circles are from COSY-EDDA [79]. The shaded bands illustrate the uncertainty of our calculation.…”

“…Double polarization parameter ANN for pp elastic scattering as a function of the four-momentum transfer squared t for different beam momenta (in GeV/c) as indicated in the figure. The triangles are data from SATURNE [29,30,78], the squares are from ZGS ANL [66], and the circles are from COSY-EDDA [79]. The shaded bands illustrate the uncertainty of our calculation.…”

“…The most recent extensive measurements of pp scattering were done by the EDDA Collaboration at COSY [24,25] and at SATURNE in Saclay [26,27,28,29,30]. These experiments provide a wealth of precise data on differential cross sections and polarizations up to beam momenta of about 3.8 GeV/c.…”