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We report the results of a high-statistics, sensitive search for narrowbaryon resonances decaying to $\Xi^-\pi^-$, $\Xi^-\pi^+$, $\bar{\Xi}^+\pi^-$,and $\bar{\Xi}^+\pi^+$. The only resonances observed are the well known$\Xi^0(1530)$ and $\bar{\Xi^0}(1530)$. No evidence is found for a state near1862 MeV, previously reported by NA49\cite{NA49}. At the 95% confidence level,we find the upper limit for the production of a Gaussian enhancement with$\sigma=7.6$ MeV in the $\Xi^-\pi^-$ effective mass spectrum to be 0.3% of thenumber of observed $\Xi^0(1530)\to\Xi^-\pi^+$. We find similarly restrictiveupper limits for an enhancement at 1862 MeV in the $\Xi^-\pi^+$,$\bar{\Xi}^+\pi^-$, and $\bar{\Xi}^+\pi^+$ mass spectra.Comment: Submitted to PR

physical review letters

Search for Exotic Baryons in 800 GeV<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>p</mml:mi><mml:mi>p</mml:mi><mml:mo>→</mml:mo><mml:mi>p</mml:mi><mml:msup><mml:mi>Ξ</mml:mi><mml:mo>±</mml:mo></mml:msup><mml:msup><mml:mi>π</mml:mi><mml:mo>±</mml:mo></mml:msup><mml:mi>X</mml:mi></mml:math>Reactions

Search for Exotic Baryons in 800 GeVpp→pΞ±π±XReactions