Measurement of the absolute differential cross section of proton-proton elastic scattering at small angles

Abstract

The differential cross section for proton-proton elastic scattering has been measured at a beam energy of 1.0 GeV and in 200 MeV steps from 1.6 to 2.8 GeV for centre-of-mass angles in the range from 12-16 degrees to 25-30 degrees, depending on the energy. Absolute normalisations of typically 3% were achieved by studying the energy losses of the circulating beam of the COSY storage ring as it passed repeatedly through the windowless hydrogen target of the ANKE magnetic spectrometer. It is shown that the data have a significant impact upon a partial wave analysis. After extrapolating the differential cross sections to the forward direction, the results are broadly compatible with the predictions of forward dispersion relations.

References in corpus (3)

• Updated analysis of NN elastic scattering to 3 GeV
• Determination of target thickness and luminosity from beam energy losses
• Measurement of the analysing power in proton-proton elastic scattering at small angles

Cited by in corpus (6)

• Partial-Wave Analysis of Nucleon-Nucleon Elastic Scattering Data
• The legacy of the experimental hadron physics programme at COSY
• Measurement of the analyzing powers in pd elastic and pn quasi-elastic scattering at small angles
• Experimental and theoretical study of deuteron-proton elastic scattering for proton kinetic energies between $T_p=882.2\text{MeV}$ and $T_p=918.3\text{MeV}$
• Measurement of proton-proton elastic scattering into the Coulomb region at ${\text{P}}_{\text{beam}}$ = 2.5, 2.8 and 3.2 GeV/c
• Empirical Parameterization of Nucleon-Nucleon Elastic Scattering Amplitude at High Beam Momenta for Glauber Calculations and Monte Carlo Simulations