The second moment of the pion light cone
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Luigi Del Debbio; Massimo Di Pierro; Alex Dougall
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Article
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2003
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Elsevier Science
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English
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We present a preliminary result for second moment of the light cone wave function of the pion. This parameter is the subject of a discrepancy between theoretical predictions (coming from lattice and sum rules) and a recent experimental result (that remarkably agrees with purely perturbative predicti