SOME CONSIDERATIONS ON THE RECENTLY FOUND EVIDENCE FOR A $pi$$lambda$ RESONANCE
Journal Article
·
· Phys. Rev. Letters
The predictions of the model for pion-hyperon interactions in the case of equal DELTA and SIGMA parities are examined in the light of evidence for a pi DELTA resonance in the K/sup -/ + p DELTA + pi + + pi /sup -/ reaction. The model predicts two resonant states (T = l and 2) for J =3/2. Since the T = 1 resonance is present in both the pi DELTA and pi channels, the branching ratio for the decay ofY* for pi SIGMA and pi DELTA states is calculated and found to be in qualitative agreement with experiment. The results predicted for the pi DELTA (T = 1) resonance also agrees with experiment. The possibility of other resonances are considered. The results suppent the assumption of equal DELTA - SIGMA parity and the assignment of spin 3/2 to the observed resonance. (D.L.C.)
- Research Organization:
- European Organization for Nuclear Research, Geneva
- NSA Number:
- NSA-15-006681
- OSTI ID:
- 4121471
- Journal Information:
- Phys. Rev. Letters, Journal Name: Phys. Rev. Letters Vol. Vol: 5
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
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