期刊
EUROPEAN PHYSICAL JOURNAL A
卷 34, 期 4, 页码 405-412出版社
SPRINGER
DOI: 10.1140/epja/i2008-10518-5
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We report a theoretical study of the pp -> pK(+)Lambda(1405) reaction, which was recently investigated at COSY-Julich 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 Lambda(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.
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