Total and Differential Cross Sections for the pp-->pp eta-prime Reaction Near Threshold

A. Khoukaz; I. Geck; C. Quentmeier; H. -H. Adam; A. Budzanowski; R. Czyzykiewicz; D. Grzonka; L. Jarczyk; K. Kilian; P. Kowina; N. Lang; T. Lister; P. Moskal; W. Oelert; C. Piskor-Ignatowicz; T. Rozek; R. Santo; G. Schepers; T. Sefzick; S. Sewerin; M. Siemaszko; J. Smyrski; A. Strzalkowski; A. Taschner; P. Winter; M. Wolke; P. Wustner; W. Zipper

doi:10.1140/epja/i2003-10169-0

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Total and Differential Cross Sections for the pp-->pp eta-prime Reaction Near Threshold

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Abstract

The eta-prime meson production in the reaction pp-->pp eta-prime 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 eta-prime mesons is also consistent with pure s-wave production.

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A. Khoukaz, I. Geck, C. Quentmeier, H. -H. Adam, A. Budzanowski, R. Czyzykiewicz, D. Grzonka, L. Jarczyk, K. Kilian, P. Kowina, N. Lang, T. Lister, P. Moskal, W. Oelert, C. Piskor-Ignatowicz, T. Rozek, R. Santo, G. Schepers, T. Sefzick, S. Sewerin, M. Siemaszko, J. Smyrski, A. Strzalkowski, A. Taschner, P. Winter, M. Wolke, P. Wustner, W. Zipper. 2004-01-11. Total and Differential Cross Sections for the pp-->pp eta-prime Reaction Near Threshold. https://doi.org/10.1140/epja%2Fi2003-10169-0

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