INTERACTION OF 560-Mev NEGATIVE $pi$-MESONS WITH EMULSION NUCLEI
Interactions of 560 pi /sup -/ with emulsion nuclei were investigated. 4454 stars were found by area scanning. These yield an interaction mean free path of processes including absorption, charge exchange scattering, and inelastic scattering of 28 plus or minus 2 cm. 485 stars were analyzed in detail. The frequency of stars with charged pions is 33 plus or minus 4% where those with no heavy prong were excluded. The average kinetic energy of pions from stars with one negative pion is 176 plus or minus 20 Mev. A marked correlation exists between the pion energy snd the angle of emission. Eight events with two charged pions and ten with one positive pion were found. A rough estimate gives a fraction of events with charged pion production of 7 plus or minus 4%. (auth)
- Research Organization:
- Univ. of Uppsala
- NSA Number:
- NSA-15-020076
- OSTI ID:
- 4063239
- Journal Information:
- Arkiv Fysik, Journal Name: Arkiv Fysik Vol. Vol: 19
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
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