Precision Measurements of Antiproton - ProtonForward Elastic Scattering
نویسندگان
چکیده
Diierential cross sections for pp elastic scattering have been measured for very small momentum transfers at six diierent incident antiproton momenta in the range 3.7 to 6.2 GeV/c by the detection of recoil protons at scattering angles close to 90. Forward scattering parameters T , b, and have been determined. For the-parameter, up to an order of magnitude higher level of precision has been achieved compared to that in earlier experiments. It is found that existing dispersion theory predictions are in disagreement with our results for the-parameter.
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