This title appears in the Scientific Report :
2010
Please use the identifier:
http://hdl.handle.net/2128/10328 in citations.
Please use the identifier: http://dx.doi.org/10.1140/epja/i2010-10961-7 in citations.
Primakoff effect in eta-photoproduction off protons
Primakoff effect in eta-photoproduction off protons
We analyse data on forward eta-meson photoproduction off a proton target and extract the eta ->gamma gamma decay width utilizing the Primakoff effect. The hadronic amplitude that enters into our analysis is strongly constrained because it is fixed from a global fit to available gamma p -> p et...
Saved in:
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, 44 (2010) S. 169 - 173 |
Imprint: |
Berlin
Springer
2010
|
Physical Description: |
169 - 173 |
DOI: |
10.1140/epja/i2010-10961-7 |
Document Type: |
Journal Article |
Research Program: |
Physik der Hadronen und Kerne |
Series Title: |
European Physical Journal A
44 |
Subject (ZB): | |
Link: |
Get full text OpenAccess OpenAccess |
Publikationsportal JuSER |
Please use the identifier: http://dx.doi.org/10.1140/epja/i2010-10961-7 in citations.
We analyse data on forward eta-meson photoproduction off a proton target and extract the eta ->gamma gamma decay width utilizing the Primakoff effect. The hadronic amplitude that enters into our analysis is strongly constrained because it is fixed from a global fit to available gamma p -> p eta data for differential cross-sections and polarizations. We compare our results with present information on the two-photon eta-decay from the literature. We provide predictions for future PrimEx experiments at Jefferson Laboratory in order to motivate further studies. |