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Results of the searches for pentaquarks with strangeness in DIS at HERA

The K0s-p invariant mass spectrum was reconstructed in several kinematic regions with the main emphasis on the studies of the production mechanism of the Theta+ candidate recently observed by ZEUS. The candidate Theta+ signal was found to be produced predominantly in the forward hemisphere in the laboratory frame. This is unlike the case for the Lambda(1520) or the Lambda(c), and indicates that the Theta+ may have an unusual production mechanism related to proton-remnant fragmentation. H1 does not observe a signal and sets an upper limit at 95% C.L. which does not exclude the ZEUS observation.

preprint2005arXivOpen access
S. Chekanov
hep-ex
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Imported metadata coverageMissing code, dataset, citation and institution fields are tracked without dominating the paper.Details
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S. Chekanov

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