Photoproduction of pi(0)eta on protons and the Delta(1700)D-33-resonance

A2 Collaboration, MAMI Collaboration, TAPS Collaboration, V. L. Kashevarov, A. Fix, P. Aguar-Bartolome, L. K. Akasoy, J. R. M. Annand, H. J. Arends, K. Bantawa, R. Beck, V. Bekrenev, H. Berghaeuser, B. Boillat, A. Braghieri, D. Branford, W. J. Briscoe, J. Brudvik, S. Cherepnya, E. J. Downie, P. Drexler, L. V. Fil'kovD. I. Glazier, R. Gregor, E. Heid, D. Hornidge, O. Jahn, T. C. Jude, A. Knezevic, R. Kondratiev, M. Korolija, M. Kotulla, A. Koulbardis, S. Kruglov, B. Krusche, V. Lisin, K. Livingston, I. J. D. MacGregor, Y. Maghrbi, D. M. Manley, M. Martinez-Fabregate, J. C. McGeorge, E. F. McNicoll, D. Mekterovic, V. Metag, S. Micanovic, B. M. K. Nefkens, A. Nikolaev, R. Novotny, M. Ostrick, R. O. Owens, P. Pedroni, D. P. Watts

Research output: Contribution to journalArticlepeer-review

Abstract / Description of output

Total and differential cross-sections for the reaction gamma p -> pi(0)eta p have been measured with the Crystal Ball/TAPS detector using the tagged photon facility at the MAMI C accelerator in Mainz. In the energy range E-gamma = 0.95-1.4 GeV the reaction is dominated by the excitation and sequential decay of the Delta(1700)D-33-resonance. Angular distributions measured with high statistics allow us to determine the ratio of hadronic decay widths Gamma(eta Delta)/Gamma pi S-11 and the ratio of the helicity amplitudes A(3/2)/A(1/2) for this resonance.

Original languageEnglish
Pages (from-to)141-149
Number of pages9
JournalThe European Physical Journal A (EPJ A)
Issue number2
Publication statusPublished - Nov 2009


Dive into the research topics of 'Photoproduction of pi(0)eta on protons and the Delta(1700)D-33-resonance'. Together they form a unique fingerprint.

Cite this