This title appears in the Scientific Report :
2010
Please use the identifier:
http://dx.doi.org/10.1140/epja/i2010-11049-2 in citations.
Please use the identifier: http://hdl.handle.net/2128/10309 in citations.
Analysis of recent eta photoproduction data
Analysis of recent eta photoproduction data
Recent data on eta-meson photoproduction off a proton target in the energy range 2 <= root s <= 3 GeV are analyzed with regard to their overall consistency. Results from the ELSA and CLAS measurements are compared with predictions of a Regge model whose reaction amplitude was fixed via a globa...
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Personal Name(s): | Sibirtsev, A. |
---|---|
Haidenbauer, J. / Krewald, S. / Meißner, U.-G. | |
Contributing Institute: |
Theorie der starken Wechselwirkung; IKP-3 |
Published in: | The @European physical journal / A, 46 (2010) S. 359 - 371 |
Imprint: |
Berlin
Springer
2010
|
Physical Description: |
359 - 371 |
DOI: |
10.1140/epja/i2010-11049-2 |
Document Type: |
Journal Article |
Research Program: |
Physik der Hadronen und Kerne |
Series Title: |
European Physical Journal A
46 |
Subject (ZB): | |
Link: |
Get full text OpenAccess OpenAccess |
Publikationsportal JuSER |
Please use the identifier: http://hdl.handle.net/2128/10309 in citations.
Recent data on eta-meson photoproduction off a proton target in the energy range 2 <= root s <= 3 GeV are analyzed with regard to their overall consistency. Results from the ELSA and CLAS measurements are compared with predictions of a Regge model whose reaction amplitude was fixed via a global fit to pre-2000 measurements of differential cross sections and polarization observables for gamma p -> eta p at higher energies. We find that all recent experimental results on differential cross sections for eta-meson photoproduction are in good agreement with each other, except for the CLAS data from 2009. However, the latter can be made consistent with the other data at the expense of introducing an energy-dependent renormalization factor. We point out that there are indications in the data for a possible excitation of baryon resonances with masses around 2.1 and 2.4 GeV. |