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arXiv · 0704.3594

Search for Baryonic Resonances Decaying to Xi pi in Deep-Inelastic Scattering at HERA

H1 Collaboration
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Abstract

A search for narrow baryonic resonances decaying into Xi- pi- or Xi- pi+ and their antiparticles is carried out with the H1 detector using deep inelastic scattering events at HERA in the range of negative photon four-momentum transfer squared 2 < Q^2 < 100 GeV^2. No signal is observed for a new baryonic state in the mass range 1600 - 2300 MeV in either the doubly charged or the neutral decay channels. The known baryon Xi0 is observed through its decay mode into Xi- pi+. Upper limits are given on the ratio of the production rates of new baryonic states, such as the hypothetical pentaquark states Xi^{--}_{5q} or Xi^{0}_{5q}, relative to the Xi0 baryon state.

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H1 Collaboration. 2007-04-26. Search for Baryonic Resonances Decaying to Xi pi in Deep-Inelastic Scattering at HERA. https://doi.org/10.1140/epjc%2Fs10052-007-0407-3

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