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Direct observation of a rho decay of the D13(1520) baryon resonance |
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| Authors: | Langgärtner W Ahrens J Beck R Hejny V Kotulla M Krusche B Kuhr V Leukel R McGregor J D Messchendorp J G Metag V Novotny R Olmos de Léon V Owens R O Rambo F Schadmand S Schmidt A Siodlaczek U Ströher H Weiss J Wissmann F Wolf M |
| Institution: | II. Physikalisches Institut, Universit?t Giessen, D-35392 Giessen, Germany. |
| Abstract: | The reaction gammap-->pi(+)pi(0)n has been measured at MAMI for photon energies up to 820 MeV. Invariant mass spectra of the particles in the final state (pi(+)n), (pi(0)n), (pi(+)pi(0)) have been determined for several bins of incident photon energy. Differences in pi(+)pi(0) and simultaneously measured pi(0)pi(0) invariant mass distributions are assigned to a rho branch of the D13(1520) nucleon resonance. |
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