Evidence for a Parity Doublet {delta}(1920)P{sub 33} and {delta}(1940)D{sub 33} from {gamma}p{yields}p{pi}{sup 0}{eta}
Journal Article
·
· Physical Review Letters
- Helmholtz-Institut fuer Strahlen- und Kernphysik der Universitaet Bonn (Germany)
Evidence is reported for the existence of a parity doublet of {delta} resonances with total angular momentum J=3/2 from photoproduction of the p{pi}{sup 0}{eta} final state. The two parity partners {delta}(1920)P{sub 33} and {delta}(1940)D{sub 33} make significant contributions to the reaction. Cascades of resonances into {delta}(1232){eta}, N(1535){pi}, and Na{sub 0}(980) are clearly observed.
- OSTI ID:
- 21179905
- Journal Information:
- Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 20 Vol. 101; ISSN 0031-9007; ISSN PRLTAO
- Country of Publication:
- United States
- Language:
- English
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