LOW-ENERGY CHARGED MESON PHOTOPRODUCTION
To resolve a discrepancy existing as an energy or angular dependence in the reaction gamma + p yields pi /sup +/ + n, angulat distributions of pi / sup +/ mesons from hydrogen at 185 Mev gamma energy were measured using a Bremsstrahlung beam of maximum energy 220 Mev produced by an electron linear accelerator. The meson counting rate was calibrated at a given meson energy under the kinematical conditions in which experimental sets of data at fixed momentum transfer were used (NSA, 15: 31537). The cross section is known and described by the Chew-Goldberger-LowNamber theory. Results are in agreement with those of M. Beneventano et al. (Nuovo Cimento 4: 323(1956)) and in disagreement with M. I. Adamovich et al. (Proceedings of the 1960 Annual International Conference on High Energy Physics at Rochester, 330(1960)). (L.N.N.)
- Research Organization:
- Ecole Normale Superieure, Orsay, France
- NSA Number:
- NSA-16-009396
- OSTI ID:
- 4814252
- Journal Information:
- Phys. Rev. Letters, Journal Name: Phys. Rev. Letters Vol. Vol: 8
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
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