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Total and differential cross-sections for the reaction near threshold

Total and differential cross-sections for the reaction near threshold,10.1140/epja/i2003-10155-6,European Physical Journal A,A. Khoukaz,I. Geck,C. Qu

Total and differential cross-sections for the reaction near threshold  
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A. Khoukaz, I. Geck, C. Quentmeier, H.-H. Adam, A. Budzanowski, R. Czy┼╝ykiewicz, D. Grzonka, L. Jarczyk, K. Kilian, P. Kowina, N. Lang, T. Listerhttp://academic.research.microsoft.com/io.ashx?type=5&id=12502807&selfId1=0&selfId2=0&maxNumber=12&query=
The $\eta^\prime$ -meson production in the reaction $pp\rightarrow pp\eta^\prime$ 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.
Journal: European Physical Journal A - EUR PHYS J A , vol. 20, no. 2, pp. 345-350, 2004
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