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    Antunovic, B.; Babaev, A.; Backovic, S.; Bartel, W.; Belousov, A.; Bizot, J. C.; Boudry, V.; Brandt, G.; Bruncko, D.; Buesser, F. W.; Bystritskaya, L.; Campbell, A. J.; Cozzika, G.; Dau, W. D.; De Wolf, E. A.; Diaconu, C.; Dubak, A.; Eichler, R.; Essenov, S.; Faulkner, P. J. W.; Fedotov, A.; Ferencei, J.; Fleischer, M.; Franke, G.; Garutti, E.; Gayler, J.; Glazov, A.; Glushkov, I.; Goerlich, L.; Greenshaw, T.; Grell, B. R.; Grindhammer, G.; Haidt, D.; Hajduk, L.; Hiller, K. H.; Ibbotson, M.; Janauschek, L.; Jung, A. W.; Kapichine, M.; Klein, M.; Kluge, T.; Knies, G.; Kostka, P.; Kretzschmar, J.; Landon, M. P. J.; Lastovicka-Medin, G.; Laycock, R.; Lebedev, A.; Leibenguth, G.; Levonian, S.; List, B.; Lobodzinska, E.; Loktionova, N.; Lopez-Fernandez, R.; Lucaci-Timoce, A. -I.; Lueke, D.; Lux, T.; Malinovski, E.; Marti, L.; Maxfield, S. J.; Milcewicz-Mika, I.; Mohamed, A.; Mozer, M. U.; Murin, P.; Naumann, Th; Nowak, G.; Oganezov, R.; Olivier, B.; Olsson, J. E.; Ozerov, D.; Panagoulias, I.; Patel, G. D.; Pitzl, D.; Placakyte, R.; Povh, B.; Rahmat, A. J.; Risler, C.; Salvaire, F.; Sankey, D. P. C.; Schaetzel, S.; Schoeffel, L.; Schultz-Coulon, H. -C.; Sefkow, F.; Sheviakov, I.; South, D.; Steder, M.; Stoilov, A.; Straumann, U.; Thompson, P. D.; Tomasz, F.; Tsurin, I.; Turnau, J.; Valkarova, A.; Veelken, C.; Wegener, D.; Werner, C.; Xella, S.; Yeganov, V.; Zhokin, A.; Zimmermann, J.

    Physics letters. B, 08/2006, Volume: 639, Issue: 3-4
    Journal Article

    A search for a narrow baryonic resonance decaying to K(s)(0)p or K-s(0)(p) over bar is carried out in deep inelastic ep scattering with the H1 detector at HERA. ss Such a resonance could be a strange pentaquark Theta(+), evidence for which has been reported by several experiments. The K(s)(0)p and K-s(0)(p) over bar invariant ss mass distributions presented here do not show any significant peak in the mass range from threshold up to 1.7 GeV. Mass dependent upper limits on sigma(ep -> e Theta X+) x BR(Theta(+) -> K(0)p) are obtained at the 95% confidence level.