Near-Threshold eta Meson Production in Proton-Proton Collisions

J. Smyrski; P. Wuestner; A. Budzanowski; H. Dombrowski; D. Grzonka; L. Jarczyk; M. Jochmann; A. Khoukaz; K. Kilian; P. Kowina; M. Koehler; P. Moskal; W. Oelert; C. Quentmeier; R. Santo; G. Schepers; U. Seddik; T. Sefzick; S. Sewerin; A. Strzalkowski; M. Wolke

doi:10.1016/s0370-2693(99)01447-1

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arXiv · nucl-ex/9912011

Near-Threshold eta Meson Production in Proton-Proton Collisions

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Abstract

The production of eta mesons has been measured in the proton-proton interaction close to the reaction threshold using the COSY-11 internal facility at the cooler synchrotron COSY. Total cross sections were determined for eight different excess energies in the range from 0.5 MeV to 5.4 MeV. The energy dependence of the total cross section is well described by the available phase-space volume weighted by FSI factors for the proton-proton and proton-eta pairs.

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J. Smyrski, P. Wuestner, A. Budzanowski, H. Dombrowski, D. Grzonka, L. Jarczyk, M. Jochmann, A. Khoukaz, K. Kilian, P. Kowina, M. Koehler, P. Moskal, W. Oelert, C. Quentmeier, R. Santo, G. Schepers, U. Seddik, T. Sefzick, S. Sewerin, A. Strzalkowski, M. Wolke. 1999-12-22. Near-Threshold eta Meson Production in Proton-Proton Collisions. https://doi.org/10.1016/s0370-2693(99)01447-1

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