Analyzing power of proton-nucleus elastic scattering between 80 and 180 MeV

Elastic scattering of polarized protons of 80-180 MeV from a number of target nuclei ($24<A<208$) has been measured. The systematic energy and target mass dependence of the cross section and analyzing power angular distributions is discussed. The data have been analyzed within the framework of a conventional optical potential model, and the behavior of the potential parameters as a function of energy is investigated. Comparisons are made with results obtained at energies greater than 180 MeV and with predictions obtained from microscopic models.NUCLEAR REACTIONS ²⁴Mg(→p, p), Eₚ=134.7 MeV; ²⁸Si(→p, p), Eₚ=134.5 MeV; ⁴⁰Ca(→p, p), Eₚ=80.2, 181.5 MeV; ⁹⁰Zr(→p, p), Eₚ=79.6, 98.7, 134.8, 160 MeV; ⁹²Zr(→p, p), Eₚ=104 MeV; ¹²⁰Sn(→p, p), Eₚ=104 MeV; ²⁰⁸Pb(→p, p), Eₚ=79.8, 98, 182 MeV; measured σ(θ), Ay(θ); optical-model analysis, deduced energy dependence, comparison with microscopic models.