Elastic Scattering Of Negative Pions By Protons At 2 Bev C PDF Download

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ELASTIC SCATTERING OF NEGATIVE PIONS BY PROTONS AT 2 BEV/C..

ELASTIC SCATTERING OF NEGATIVE PIONS BY PROTONS AT 2 BEV/C..
Author: David Earl Damouth
Publisher:
Total Pages: 136
Release: 1963
Genre: Pions
ISBN:

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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).