Search for the Phi(1860) pentaquark at COMPASS

  title={Search for the Phi(1860) pentaquark at COMPASS},
  author={E. I. Ageev and E. al.},
  journal={European Physical Journal C},
Narrow Xi(+/-)pi(+/-) and Xi(+) 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( 1530)(0) are clearly seen, no exotic baryon is observed in the data taken in 2002 and 2003. 
20 Citations
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