EPJ Web Conf.
Volume 130, 2016MESON 2016 – 14th International Workshop on Meson Production, Properties and Interaction
|Number of page(s)||3|
|Section||03 Physics of the η meson - contributions|
|Published online||29 November 2016|
Near threshold production of η-mesons in proton neutron collisions at ANKE
Institut für Kernphysik, Westfälische Wilhelms-Universität, Münster, Germany
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Published online: 29 November 2016
The interaction between hadrons and η-mesons is an intensively studied topic. Due to its stength it might lead to the formation of η-mesic nuclei. In order to study the characteristics of this interaction a measurement of the reaction p + d → d + η + psp has been performed at the ANKE spectrometer at the COSY accelerator of the Forschungszentrum Jülich. The two different beam momenta (p1 = 2.09 GeV/c and p2 = 2.25 GeV/c) in combination with the Fermi motion inside the target deuteron grant access to the determination of total and differential cross sections in an excess energy range from threshold up to Q = 90 MeV. While the course of the total cross section, especially near threshold, will allow to extract the scattering length adη via an s-wave final state interaction ansatz, the differential cross sections permit to verify the legitimacy of the s-wave assumption.
© The Authors, published by EDP Sciences, 2016
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