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LOW-ENERGY NEUTRAL PION PHOTOPRODUCTION IN H$sub 2$ AND He

Journal Article · · Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D
; ;
The results of an experiment on the photoproduction of neutral pions from hydrogen and helium in the very lowenergy region are compared with the dispersion relation calculations of Chew, Goldberger, Low, and Nambu. For hydrogen, agreement was found for incident gamma ray energies above 155 Mev for N/sup +/- approx equal 0.065 and disagreement below for all constant values of N/sup +/. The helium results give support to their effective-range formulas for the small pwave phase shifts. (auth)
Research Organization:
Univ. of Illinois, Urbana
NSA Number:
NSA-15-003368
OSTI ID:
4144148
Journal Information:
Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D, Journal Name: Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D Vol. Vol: 120; ISSN PHRVA
Country of Publication:
Country unknown/Code not available
Language:
English

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Related Subjects

ENERGY
ENERGY LEVELS
GOLDBERGER MODEL
HELIUM
HYDROGEN
NUCLEAR MODELS
NUCLEAR REACTIONS
PHOTONS
PHYSICS
PI MESONS
PIONS