NUCLEON STRUCTURE AND PION-PHENOMENA
The effect of the nucleon structure is discussed, correlating phenomenologically a variety of pion-nucleon phenomena with the nucleon core. In the high-energy region, the experimental evidence is interpreted in terms of nucleon structure. The main results are: (1) The optical radius R of the proton estimated the pi /sup -/-p elastic scattering is nearly constant in the energy region (1 to 5) Bev; (2) the effective collision parameter in the pi /sup -/-p reaction shows the nearly constant value 0.8 x 10/sup 13/ cm in the (1 to 5) Bev region; (3) the mean energy of the mesons produced in the pi /sup +/-p reaction in the energy range (1 to 5) Bev indicates a picture of meson production as a shaking off of mesons from the nucleon core; (4) in the nucleon-nucleon collisions in Bev order, the mean energy of the mesons produced suggests a shaking off of the external meson cloud such as given by the isobar model; (5) a regularity of the reduced multiplicity is discussed concerning the proton- antiproton annihilation star. In the low-energy region, the well known failure of the meson theory on the S wave is to be ascribed to the internal effect of the nucleon structure. (auth)
- Research Organization:
- Univ. of Education, Tokyo, Osaka City Univ., Univ. of Bologna; Istituto Nazionale di Fisica Nucleare, Bologna
- Sponsoring Organization:
- USDOE
- NSA Number:
- NSA-12-017692
- OSTI ID:
- 4293449
- Journal Information:
- Nuovo Cimento (Italy) Divided into Nuovo Cimento A and Nuovo Cimento B, Journal Name: Nuovo Cimento (Italy) Divided into Nuovo Cimento A and Nuovo Cimento B Vol. Vol: (10) 9; ISSN NUCIA
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
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