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Coalescence Production of Broad Near-Threshold Resonances

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Abstract.

 Several cases are discussed when an amplitude of resonance production is a sharply varying function of the resonance mass, leading to considerable differences between true and visible resonance parameters. The case of production is considered in more details. As all non-trivial features are caused by the peculiarities of the triangle graphs (threshold and proper-moving complex singularities near physical region), the possible methods of their visualization in inclusive cross sections and polarization effects are also studied.

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  1. Lebedev Physical Institute, Leninsky Prospect 53, 119991 Moscow, Russia, , , , , , RU

    V. M. Kolybasov

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  1. V. M. Kolybasov
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Received October 29, 2001; accepted for publication November 15, 2001

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Kolybasov, V. Coalescence Production of Broad Near-Threshold Resonances. Few-Body Systems 31, 171–176 (2002). https://doi.org/10.1007/s006010200017

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  • DOI: https://doi.org/10.1007/s006010200017

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