%0 Journal Article
%A Crede, V.
%A Bartholomy, O.
%A Anisovich, A.
%A Anton, G.
%A Bantes, R.
%A Beloglazov, Y. A.
%A Bogendoerfer, R.
%A Ehmanns, A.
%A Ernst, J.
%A Fabry, I.
%A Flemming, J. K.
%A Fosel, P. S.
%A Freiesleben, H.
%A Fuchs, M.
%A Funke, C.
%A Gothe, R.
%A Gridnev, A. B.
%A Gutz, E.
%A Hoeffgen, S.
%A Horn, I.
%A Hossl, J.
%A Joosten, R.
%A Junkersfeld, J.
%A Kalinowsky, H.
%A Klein, F.
%A Klempt, E.
%A Koch, H.
%A Konrad, M.
%A Kopf, B.
%A Krusche, B.
%A Langheinrich, J.
%A Loehner, H.
%A Lopatin, I. V.
%A Lotz, J.
%A Matthay, G. G.
%A Menze, D.
%A Messchendorp, J. G.
%A Morales, C.
%A Novinski, D.
%A Ostrick, M.
%A van Pee, H.
%A Radkov, J. O.
%A Reinnarth, J.
%A Sarantsev, A.
%A Schadmand, S.
%A Schmidt, C.
%A Schmieden, H.
%A Schoch, B.
%A Suft, G.
%A Sumachev, V. V.
%A Szczepanek, T.
%A Thoma, U.
%A Walther, D.
%A Weinheimer, Ch.
%T Photoproduction of eta mesons off protons for 0.75 GeV kleiner  E(gamma) kleiner 3 GeV
%J Physical review letters
%V 94
%@ 0031-9007
%C College Park, Md.
%I APS
%M PreJuSER-50044
%P 012004
%D 2005
%Z Record converted from VDB: 12.11.2012
%X Total and differential cross sections for the reaction p(gamma,eta)p have been measured for photon energies in the range from 750 MeV to 3 GeV. The low-energy data are dominated by the S-11 wave which has two poles in the energy region below 2 GeV. Eleven nucleon resonances are observed in their decay into peta. At medium energies we find evidence for a new resonance N(2070)D-15 with (M,Gamma)=(2068+/-22, 295+/-40) MeV. At gamma energies above 1.5 GeV, a strong peak in the forward direction develops, signaling the exchange of vector mesons in the t channel.
%K photon p: exclusive reaction (INSPIRE)
%K eta: photoproduction (INSPIRE)
%K eta: decay modes (INSPIRE)
%K nucleon resonance: intermediate state (INSPIRE)
%K nucleon resonance: mass spectrum (INSPIRE)
%K nucleon resonance: width (INSPIRE)
%K isobar model (INSPIRE)
%K angular distribution (INSPIRE)
%K channel cross section: energy dependence (INSPIRE)
%K four-pi-detector: experimental results (INSPIRE)
%K Bonn ELSA Stor (INSPIRE)
%K photon p --> p eta (INSPIRE)
%K eta --> 2photon (INSPIRE)
%K eta --> 3pi0 (INSPIRE)
%K 0.7-3.0 GeV (INSPIRE)
%F PUB:(DE-HGF)16
%9 Journal Article
%U <Go to ISI:>//WOS:000226308000022
%R 10.1103/PhysRevLett.94.012004
%U https://juser.fz-juelich.de/record/50044