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Total and differential cross-sections for the pp\rightarrow pp\eta^\prime reaction near threshold |
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| Authors: | A Khoukaz I Geck C Quentmeier H-H Adam A Budzanowski R Czyżykiewicz D Grzonka L Jarczyk K Kilian P Kowina N Lang T Lister P Moskal W Oelert C Piskor-Ignatowicz T Rożek R Santo G Schepers T Sefzick S Sewerin M Siemaszko J Smyrski A Strzałkowski A Täschner P Winter M Wolke P Wüstner W Zipper |
| Institution: | (1) Institut für Kernphysik, Westfälische Wilhelms-Universität, D-48149 Münster, Germany;(2) Institute of Nuclear Physics, PL-31-342 Cracow, Poland;(3) Institute of Physics, Jagellonian University, PL-30-059 Cracow, Poland;(4) IKP and ZEL, Forschungszentrum Jülich, D-52425 Jülich, Germany;(5) Institute of Physics, University of Silesia, PL-40-007 Katowice, Poland |
| Abstract: | The
-meson production in the reaction
has been studied at excess energies of Q = 26.5, 32.5 and 46.6 MeV using the internal beam facility COSY-11 at the cooler synchrotron COSY. The total cross-sections as well as one angular distribution for the highest Q-value are presented. The excitation function of the near-threshold data can be described by a pure s-wave phase space distribution with the inclusion of the proton-proton final-state interaction and Coulomb effects. The obtained angular distribution of the
-mesons is also consistent with pure s-wave production.Received: 11 August 2003, Revised: 14 November 2003, Published online: 6 April 2004PACS:
13.60.Le Meson production - 13.75.-n Hadron-induced low- and intermediate-energy reactions and scattering (energy
GeV) - 13.85.Lg Total cross-sections - 25.40.-h Nucleon-induced reactions |
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