Journal article
Authors list: KRUSCHE, B; AHRENS, J; ANNAND, JRM; ANTON, G; BECK, R; FUCHS, M; GABLER, AR; HARTER, F; HEJNY, V; KELLIE, JD; MCGEORGE, JC; METAG, V; PEISE, J; ROBIGLANDAU, M; SCHUBERT, A; STROHER, H
Publication year: 1995
Pages: 40-46
Journal: Physics Letters B
Volume number: 358
Issue number: 1-2
ISSN: 0370-2693
DOI Link: https://doi.org/10.1016/0370-2693(95)00985-T
Publisher: Elsevier
Abstract:
The first measurement of incoherent eta-photoproduction from the deuteron in the threshold region is reported. The experiment was carried out at the MAMI accelerator with the TAPS spectrometer. Total and differential inclusive cross sections have been obtained between 627 and 790 MeV. it is found that the reaction is completely dominated by the incoherent part. An upper limit for coherent eta-photoproduction on the deuteron is deduced, which is substantially lower than the result from an earlier measurement. The incoherent cross section is reproduced in a participant-spectator approach under the assumption of an energy-independent ratio between the neutron and proton cross sections. Best agreement is found for the ratio sigma(n)/sigma(p) approximate to 2/3. The implications for the isospin components of the electromagnetic excitation of the S-11(1535) resonance are discussed.
Citation Styles
Harvard Citation style: KRUSCHE, B., AHRENS, J., ANNAND, J., ANTON, G., BECK, R., FUCHS, M., et al. (1995) NEAR-THRESHOLD PHOTOPRODUCTION OF ETA-MESONS FROM THE DEUTERON, Physics Letters B, 358(1-2), pp. 40-46. https://doi.org/10.1016/0370-2693(95)00985-T
APA Citation style: KRUSCHE, B., AHRENS, J., ANNAND, J., ANTON, G., BECK, R., FUCHS, M., GABLER, A., HARTER, F., HEJNY, V., KELLIE, J., MCGEORGE, J., METAG, V., PEISE, J., ROBIGLANDAU, M., SCHUBERT, A., & STROHER, H. (1995). NEAR-THRESHOLD PHOTOPRODUCTION OF ETA-MESONS FROM THE DEUTERON. Physics Letters B. 358(1-2), 40-46. https://doi.org/10.1016/0370-2693(95)00985-T
Keywords
ELECTROPRODUCTION; PHOTON SPECTROMETER; PION-PHOTOPRODUCTION; RESONANCES