The role of the Lambda(1405) in the pp -> pK(+)Lambda(1405) reaction
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The role of the Lambda(1405) in the pp -> pK(+)Lambda(1405) reaction

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The role of the Lambda(1405) in the pp -> pK(+)Lambda(1405) reaction

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Geng, Li Sheng; Oset Báguena, Eulogio Perfil
This document is a artículoDate2007

Este documento está disponible también en : http://hdl.handle.net/10550/46916
We report a theoretical study of the pp -> pK(+)Λ(1405) reaction, which was recently investigated at COSY-Jülich by using a 3.65 GeV/c circulating proton beam incident on an internal hydrogen target. The reaction is driven by single-kaon exchange, single-pion exchange, and single-rho exchange terms which have very different shapes due to the two-pole structure of the Λ(1405) and the presence of background terms. The shape for the sum of the three contributions, as well as the total cross-section, are consistent with present data within experimental and theoretical uncertainties, using reasonable form factors for the meson-baryon vertices.

    Geng, Li Sheng Oset Báguena, Eulogio 2007 The role of the Lambda(1405) in the pp -> pK(+)Lambda(1405) reaction European Physical Journal A 34 4 405 412
http://dx.doi.org/10.1140/epja/i2008-10518-5

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