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Search for pentaquark states in Z decays

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<mark>Journal publication date</mark>7/10/2004
<mark>Journal</mark>Physics Letters B
Issue number1-2
Volume599
Number of pages16
Pages (from-to)1-16
<mark>State</mark>Published
<mark>Original language</mark>English

Abstract

Exotic hadrons made of five quarks (pentaquarks) are searched for in hadronic Z decays collected by the ALEPH detector at LEP. No significant signal is observed. At 95% C.L., upper limits are set on the production rates N of such particles and their charge-conjugate state per Z decay