Angular dependence of the pp elastic scattering spin correlation parameter A00nn between 0.8 and 2.8 GeV: Results for 1.80–2.24 GeV

Abstract

Measurements at 19 beam kinetic energies between 1795 and 2235 MeV are reported for the $\mathrm{pp}$ elastic scattering spin correlation parameter ${A}_{00nn}{=A}_{\mathrm{NN}}{=C}_{\mathrm{NN}}.$ The c.m. angular range is typically 60--100\ifmmode^\circ\else\textdegree\fi{}. The measurements were performed at Saturne II with a vertically polarized beam and target (transverse to the beam direction and scattering plane), a magnetic spectrometer and a recoil detector, both instrumented with multiwire proportional chambers, and beam polarimeters. These results are compared to previous data from Saturne II and elsewhere.