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Second moment of the pion's distribution amplitude

✍ Scribed by M. Göckeler; R. Horsley; D. Pleiter; P.E.L. Rakow; A. Schäfer; G. Schierholz; W. Schroers; J.M. Zanotti


Book ID
108230723
Publisher
Elsevier Science
Year
2006
Tongue
English
Weight
258 KB
Volume
161
Category
Article
ISSN
0920-5632

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The second moment of the pion light cone
✍ Luigi Del Debbio; Massimo Di Pierro; Alex Dougall 📂 Article 📅 2003 🏛 Elsevier Science 🌐 English ⚖ 106 KB

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