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A lattice calculation of the second moment of the pion's distribution amplitude

✍ Scribed by G. Martinelli; C.T. Sachrajda


Book ID
113352712
Publisher
Elsevier Science
Year
1987
Tongue
English
Weight
361 KB
Volume
190
Category
Article
ISSN
0370-2693

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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