Geodesic
Quark Coalescence Mechanism near the Threshold
Teoretičeskaâ i matematičeskaâ fizika, Tome 139 (2004) no. 3, pp. 381-404 Cet article a éte moissonné depuis la source Math-Net.Ru

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The process of quark coalescence (coherent quark fusion) is described as a possible mechanism for forming cumulative particles. We evaluate and sum Feynman diagrams for the mechanism of coherent quark fusion near the cumulative thresholds. We analyze the interference between contributions due to different diagrams and the squaring of the coalescence process amplitude for one diagram and take it into account. We give closed formulas describing the process of forming cumulative particles in the coalescence mechanism.
Keywords: relativistic nuclei, Feynman diagrams, threshold behavior. 
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M. A. Braun; V. V. Vechernin. Quark Coalescence Mechanism near the Threshold. Teoretičeskaâ i matematičeskaâ fizika, Tome 139 (2004) no. 3, pp. 381-404. http://geodesic.mathdoc.fr/item/TMF_2004_139_3_a2/

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