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Published online 18 April 2005 | Nature | doi:10.1038/news050418-1
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Doubt is cast on pentaquarks
Exotic subatomic particles may be an experimental phantom.
Physicists have come home empty-handed from a thorough hunting expedition for pentaquarks. The lack of evidence has led some to doubt that these odd subatomic particles, first sighted in 2002, actually exist.
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