Elastic proton-proton scattering at 2.24, 4.40 and 6.15 Bev

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Author
Cork, Bruce
Wenzel, William A.
Causel, Charles W. Jr.
Date
1957-08-01Metadata
Show full item recordAbstract
Protons of the internal circulating beam of the Bevatron were scattered in a polyethylene target.
Both scattered and recoil protons were detected by scintillation counters at angles which define
elastic proton-proton events. An internal counter was located within a few inches of the beam to
permit measurements at laboratory scattering angles as low as 2°. Absolute values are based on the
calibration of the induction electrode that monitors the circulating beam. Total elastic cross
sections obtained by integrating the differential spectra are 17, 10, and 8 mb at 2.24, 4.40, and
6.15 Bev, respectively. The experimental angular distributions are consistent with the prediction
of a simple optical model with a complex index of refraction at short range.