Near threshold eta meson production in dp collisions

C. Piskor-Ignatowicz , J. Smyrski , P. Moskal , H.-H. Adam , A. Budzanowski , E. Czerwinski , R. Czyzykiewicz , D. Gil

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D. Grzonka M. Janusz L. Jarczyk B. Kamys A. Khoukaz P. Klaja J. Majewski W. Oelert J. Przerwa J. Ritman T. Rozek T. Sefzick M. Siemaszko A. Taeschner P. Winter M. Wolke P. Wuestner W. Zipper

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classification ✦ hep-ex

keywords mesonnearproductionthresholdacceleratorbeamcollisionsconfirms

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Preliminary results of recent measurements of the near threshold eta meson production in the dp-->dp eta reaction are presented. The experiment was performed at the COSY-Juelich accelerator with the use of the COSY-11 detection system. Data were taken for three values of deuteron beam momenta corresponding to excess energies of 3.2, 6.1 and 9.2 MeV. The energy dependence of the total cross section confirms a strong effect of the final state interaction.

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Near threshold eta meson production in dp collisions

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