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Search for the \(\phi1860\) Pentaquark at COMPASS

  • experimental physics
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Abstract.

Narrow \(\Xi^-\pi^\pm\) and \(\bar\Xi^ + \pi^\pm\) 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 \(\bar\Xi(1530)^0\) are clearly seen, no exotic baryon is observed in the data taken in 2002 and 2003.

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The COMPASS Collaboration

Additional information

Received: 15 March 2005, Published online: 31 May 2005

PACS:

13.60.Hb, 13.60.Rj, 14.20.Jn, 14.80.-j

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The COMPASS Collaboration. Search for the \(\phi1860\) Pentaquark at COMPASS. Eur. Phys. J. C 41, 469–474 (2005). https://doi.org/10.1140/epjc/s2005-02281-2

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  • DOI: https://doi.org/10.1140/epjc/s2005-02281-2

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