ELASTIC SCATTERING OF NEGATIVE PIONS BY PROTONS AT BEV/C,
Abstract
The negative pion-proton differential elastic cross section at an incident pion momentum of 2 Bev/c has been measured in a spark chamber experiment. Approximately 7000 events were obtained in the center of mass angular range .95 greater than cos theta asterisk greater than -.97. The data show an approximately ex ponential diffraction peak which when extrapo lated to cos theta asterisk 1.0 is con sistent with the optical theorem prediction. A second peak, with a maximum of 23 mb/sr is seen at cos theta asterisk .2. The backward s ering is not isotropic, but drops smoothly from .12 mb/sr at cos theta asterisk 0 to about .01 mb/sr at the most backward angles. An analysis in terms of a simple diffraction model and a fit in powers of cos theta asterisk are given. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 01, 1963
- Accession Number
- AD0412659
Entities
People
- D.e. Damouth
- L.w. Jones
- M.l. Perl
Organizations
- University of Michigan