New boundaries for the “ppK−” production in p+p collisions
1 Excellence Cluster ’Origin and Structure of the Universe’, 85748 Garching, Germany
2 Physik Department E12, Technische Universität München, 85748 Garching, Germany
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Published online: 26 November 2014
The HADES collaboration has searched for the anti-kaonic nuclear cluster “ppK−” in p+p collisions by its decay into pΛ. In the course of this analysis several cross checks had to be performed. This report discusses two examples thereof. In one test it was checked whether the presence of background events could introduce a bias on the applied partial wave analysis. The second item discussed here is the extraction of the total pK+Λ production cross section necessary to derive the absolute upper limit on the “ppK−” production cross section.
© Owned by the authors, published by EDP Sciences, 2014
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