ELASTIC SCATTERING OF NEGATIVE PIONS BY PROTONS AT 226 MEV (thesis)
Technical Report
·
OSTI ID:4055988
The total and differential elastic cross sections of 226Mev pi /sup -/ scattered by protons were measured. For detection of elastically scattered pi / sup -/ only, the proton recoiling from the pi -p collision was detected in coincidence with the associated scattered meson. Pulse height analysis of the Cherenkov radiation produced by the scattered beam was used to differentiate between pi - and electrons in the scattered particles. A total cross section of 52.9 plus or minus 1.4 mb was measured. Analysis of the differential cross section data gave d sigma /d OMEGA = (1.OOO plus or minus 0.012) STA(0.66 plus or minus 0.02) + (0.41 plus or minus O.O5) cos theta + (2.16 plus or minus 0.08) cos/sup 2/ theta !, which supports the hypothesis that only S and P waves contribute appraciably to the scattering. Integration gave a total elastic cross section Of 17.4 plus or minus 0.3 mb, in agreement with other recent measurements. The absolute value of the real part of the forward scattering amplitude was determined to be - 0.129, which agrees with that calculated with pion dispersion relations. (auth)
- Research Organization:
- Carnegie Inst. of Tech., Pittsburgh
- NSA Number:
- NSA-15-013667
- OSTI ID:
- 4055988
- Report Number(s):
- NYO-9281
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
ANGULAR DISTRIBUTION
BEAMS
CHERENKOV COUNTERS
CHERENKOV RADIATION
COINCIDENCE METHODS
CROSS SECTIONS
DETECTION
DIFFERENTIAL EQUATIONS
DISPERSIONS
DISTURBANCES
ELASTIC SCATTERING
ELECTRONS
ENERGY RANGE
ERRORS
INTEGRALS
MATHEMATICS
MEASURED VALUES
PHYSICS
PIONS
PIONS-MINUS
PROTONS
PULSE ANALYZERS
QUANTUM MECHANICS
RECOILS
SCATTERING
TARGETS
BEAMS
CHERENKOV COUNTERS
CHERENKOV RADIATION
COINCIDENCE METHODS
CROSS SECTIONS
DETECTION
DIFFERENTIAL EQUATIONS
DISPERSIONS
DISTURBANCES
ELASTIC SCATTERING
ELECTRONS
ENERGY RANGE
ERRORS
INTEGRALS
MATHEMATICS
MEASURED VALUES
PHYSICS
PIONS
PIONS-MINUS
PROTONS
PULSE ANALYZERS
QUANTUM MECHANICS
RECOILS
SCATTERING
TARGETS