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Search for the Phi(1860) Pentaquark at COMPASS

E. S. Ageev
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Abstract

Narrow Xi-pi+- and Xi-bar+pi+- resonances produced by quasi-real photons have been searched for by the COMPASS experiment at CERN. The study was stimulated by the recent observation of an exotic baryonic state decaying into Xi-pi-, at a mass of 1862 MeV, interpreted as a pentaquark. While the ordinary hyperon states Xi(1530)^0 and Xi-bar(1530)^0 are clearly seen, no exotic baryon is observed in the data taken in 2002 and 2003.

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E. S. Ageev. 2005-03-19. Search for the Phi(1860) Pentaquark at COMPASS. https://doi.org/10.1140/epjc%2Fs2005-02281-2

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