ON PION-PION RESONANCE IN p-STATE (in Russian)
Journal Article
·
· Zhur. Eksptl'. i Teoret. Fiz.
OSTI ID:4099258
- Tszo-syu, Khe
- Guan-chzhao, Chzhou
Processes pi /sup s + He/sup 4/ - He/sup 4/ + pi /sup s + pi /sup 0/; pi /sup s + d-d + pi /sup + pi 0>s; p + p - d + pi / sup +/ + pi /sup 0/ are suggested for investigating p-state pi - pi resonance. All the processes possess isospin I = 1 in the initial state, consequently, the pion pair has isospin I = 1 in the final state and is in a state with odd orbital moment. At low energies the pions are in the ground p-state. Assuming that the isobar with mass of 435 Mev and semiwidth 10 Mev is in the p-state, then the pion pair is produced in isobar decay, together with the He/sup 4/ or d and a sharp maximum is anticipated in the He/sup 4/ (or d) spectra. An analysis was made of the maxima in the processes. It is shown that in the absence of the p-isobar state the He/sup 4/(d) spectrum changes smoothly and is determined by a statistical phase multiplier. Hence, the measurements of spectra for the reactions confirm the presence of p-resonance in pion-pion systems. It is also observed that d + d - He/sup 4/ + pi /sup 0/ + pi /sup +/ + pi /sup -/ can be utilized in studies of isobar structure in pion-pion systems. (R.V.J.)
- Research Organization:
- Joint Inst. for Nuclear Research, Dubna, U.S.S.R.
- NSA Number:
- NSA-15-009756
- OSTI ID:
- 4099258
- Journal Information:
- Zhur. Eksptl'. i Teoret. Fiz., Journal Name: Zhur. Eksptl'. i Teoret. Fiz. Vol. Vol: 39
- Country of Publication:
- Country unknown/Code not available
- Language:
- Russian
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