Abstract
Recently the H 1 Collaboration observed a narrow peak in D*-p invariant mass spectrum from what is believed to be an anti-charmed pentaquark baryon state with [Formula: see text] quark content, produced in deep inelastic scattering in ep collisions at HERA. This new state was tentatively named [Formula: see text] as being an anti-charmed analog of Θ+ pentaquark discovered in 2003 by LEPS Collaboration. The upgraded CDF detector is sensitive to production of charmed pentaquark states in central rapidity region due to ability to trigger on displaced tracks from weakly decaying daughter hadrons. At this conference we report results of searches for anti-charmed pentaquark [Formula: see text] and its charged isospin partner [Formula: see text] in [Formula: see text] collisions at [Formula: see text] at Tevatron.
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