Proton-Proton Elastic Scattering Excitation Functions at Intermediate Energies

This is the authors' abstract. We don't add key points for this paper.

Excitation functions of proton-proton elastic scattering cross sections have been measured in narrow steps for projectile momenta pₚ (energies Tₚ) from $1100$ to 3300MeV/c (500 to 2500 MeV) in the angular range 35^∘≤Θc.m.≤90^∘ with a detector providing ΔΘc.m.≈1.4^∘ resolution. Measurements have been performed continuously during projectile acceleration in the cooler synchrotron COSY with an internal CH₂ fiber target, taking particular care to monitor luminosity as a function of Tₚ. The advantages of this experimental technique are demonstrated, and the excitation functions obtained are compared to existing cross section data. No evidence for narrow structures was found.