Abstract:
Coherent photoproduction of η-mesons from the deuteron has been measured from threshold up to E γ≈ 750 MeV using the photon spectrometer TAPS at the tagged photon facility at the Mainz microtron MAMI. For the first time, differential coherent cross-sections have been deduced from the coincident detection of the η-meson and the recoil deuteron. A missing-energy analysis was used for the suppression of background events so that a very clean identification of coherent η-photoproduction was achieved. The resulting cross-sections agree with previous experimental results except for angles around 90° in the γd c.m. system where they are smaller. They are compared to various model calculations.
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Received: 5 April 2001 / Accepted: 3 September 2001
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Weiß, J., Achenbach, P., Ahrens, J. et al. Exclusive measurement of coherent η-photoproduction from the deuteron. Eur Phys J A 11, 371–374 (2001). https://doi.org/10.1007/s100500170047
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DOI: https://doi.org/10.1007/s100500170047