Search for Exotic Baryons in 800 GeV pp (rtarrow) pXiPiX

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dc.creatorChristian, D. C.
dc.creatorFelix, J.
dc.creatorGottschalk, E. E.
dc.creatorHartouni, E. P.
dc.creatorKnapp, B. C.
dc.creatorKreisler, M. N.
dc.creatorMoreno, G.
dc.creatorReyes, M. A.
dc.creatorSosa, M.
dc.creatorWang, M. H. L. S.
dc.creatorWehmann, A.
dc.date2005-07-12
dc.date2005-09-22
dc.date.accessioned2026-07-07T11:26:33Z
dc.date.available2026-07-07T11:26:33Z
dc.descriptionWe report the results of a high-statistics, sensitive search for narrow baryon resonances decaying to $Ξ^-π^-$, $Ξ^-π^+$, $\barΞ^+π^-$, and $\barΞ^+π^+$. The only resonances observed are the well known $Ξ^0(1530)$ and $\bar{Ξ^0}(1530)$. No evidence is found for a state near 1862 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 $σ=7.6$ MeV in the $Ξ^-π^-$ effective mass spectrum to be 0.3% of the number of observed $Ξ^0(1530)\toΞ^-π^+$. We find similarly restrictive upper limits for an enhancement at 1862 MeV in the $Ξ^-π^+$, $\barΞ^+π^-$, and $\barΞ^+π^+$ mass spectra.
dc.descriptionSubmitted to PRL
dc.identifierhttps://arxiv.org/abs/hep-ex/0507056
dc.identifierhttp://arxiv.org/abs/hep-ex/0507056
dc.identifierPhys.Rev.Lett.95:152001,2005
dc.identifierdoi:10.1103/PhysRevLett.95.152001
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/195861
dc.subjectHigh Energy Physics - Experiment
dc.titleSearch for Exotic Baryons in 800 GeV pp (rtarrow) pXiPiX
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