ELASTIC SCATTERING OF NEGATIVE PIONS BY PROTONS AT 2 Bev/c. Technical Report No. 11
Technical Report
·
OSTI ID:4677038
The pi /sup -/-p differential elastic cross section at an incident pion momentum of 2 Bev/c was measured in a spark chamber experiment. Approximately 7000 events were obtained in the center of mass angular range 0.95> cos THETA / sup */)--0.97. The data show an approximately exponential diffraction peak that, when extrapolated to cos THETA /sup */ = 1.0, is consistent with the optical theorem prediction. A second peak, with a maximum of 0.23 mb/sr is seen at cos THETA /sup */ = 0.2. The backward scattering is not isotropic, but drops smoothly from 0.12 mb/sr at cos THETA /sup */ = to about 0.01 mb/sr at the most backward angles. An analysis in terms of a simple diffraction model and a fit in powers of cos THETA /sup */ are given. (auth)
- Research Organization:
- Michigan. Univ., Ann Arbor. Coll. of Literature, Science, and the Arts
- NSA Number:
- NSA-17-032906
- OSTI ID:
- 4677038
- Report Number(s):
- NP-12990; ORA-03106-11-T
- Country of Publication:
- United States
- Language:
- English
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