Photoproduction of π0 mesons off protons and neutrons in the second and third nucleon resonance regions
- Dieterle, M.
- Werthmuller, D.
- Abt, S.
- Afzal, F.
- Aguar Bartolome, P.
- Ahmed, Z.
- Ahrens, J.
- Annand, J. R. M.
- Arends, H. J.
- Bashkanov, M.
- Beck, R.
- Biroth, M.
- Borisov, N.
- Braghieri, A.
- Briscoe, W. J.
- Cherepnya, S.
- Cividini, F.
- Collicott, C.
- Costanza, S.
- Denig, A.
- Downie, E. J.
- Drexler, P.
- Fil'Kov, L. V.
- Garni, S.
- Glazier, D. I.
- Gorodnov, I.
- Gradl, W.
- Gunther, M.
- Gurevich, D.
- Heijkenskjold, L.
- Hornidge, D.
- Huber, G. M.
- Kaser, A.
- Kashevarov, V. L.
- Kay, S.
- Keshelashvili, I.
- Kondratiev, R.
- Korolija, M.
- Krusche, B.
- Lazarev, A.
- Lisin, V.
- Livingston, K.
- Lutterer, S.
- Macgregor, I. J. D.
- Manley, D. M.
- Martel, P. P.
- Mcgeorge, J. C.
- Metag, V.
- Middleton, D. G.
- Miskimen, R.
- Mornacchi, E.
- Mushkarenkov, A.
- Neganov, A.
- Neiser, A.
- Oberle, M.
- Ostrick, M.
- Otte, P. B.
- Oussena, B.
- Paudyal, D.
- Pedroni, P.
- Polonski, A.
- Prakhov, S. N.
- Ron, G.
- Rostomyan, T.
- Sarty, A.
- Sfienti, C.
- Sokhoyan, V.
- Spieker, K.
- Steffen, O.
- Strakovsky, I. I.
- Strub, T.
- Supek, I.
- Thiel, A.
- Thiel, M.
- Thomas, A.
- Unverzagt, M.
- Usov, Y. A.
- Wagner, S.
- Walford, N. K.
- Watts, D. P.
- Wettig, J.
- Witthauer, L.
- Wolfes, M.
- Zana, L. A.
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DOIAbstract
Background: Photoproduction of mesons off quasifree nucleons bound in the deuteron allows us to study the electromagnetic excitation spectrum of the neutron and the isospin structure of the excitation of nucleon resonances. The database for such reactions is much more sparse than for free proton targets. Purpose: Study experimentally single π0 photoproduction off quasifree nucleons from the deuteron. Investigate nuclear effects by a comparison of the results for free protons and quasifree protons. Use the quasifree neutron data (corrected for nuclear effects) to test the predictions of reaction models and partial wave analysis (PWA) for γn→nπ0 derived from the analysis of the other isospin channels. Methods: High statistics angular distribu...