Journal article

Publication year: 2005

Journal: Physical Review Letters

Volume number: 94

Issue number: 1

ISSN: 0031-9007

eISSN: 1079-7114

DOI Link: https://doi.org/10.1103/PhysRevLett.94.012004

Publisher: American Physical Society

Abstract: 
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.

Harvard Citation style: Credé, V., Bartholomy, O., Anisovich, A., Anton, G., Bantes, R., Beloglazov, Y., et al. (2005) Photoproduction of η mesons off protons for 0.75 GeVγ<3 GeV -: art. no. 012004, Physical Review Letters, 94(1), Article 012004. https://doi.org/10.1103/PhysRevLett.94.012004

APA Citation style: Credé, V., Bartholomy, O., Anisovich, A., Anton, G., Bantes, R., Beloglazov, Y., Bogendörfer, R., Castelijns, R., Ehmanns, A., Ernst, J., Fabry, I., Flemming, H., Fösel, A., Freiesleben, H., Fuchs, M., Funke, C., Gothe, R., Gridnev, A., Gutz, E., ...Weinheimer, C. (2005). Photoproduction of η mesons off protons for 0.75 GeVγ<3 GeV -: art. no. 012004. Physical Review Letters. 94(1), Article 012004. https://doi.org/10.1103/PhysRevLett.94.012004