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The second moment of the pion's distribution amplitude

We present preliminary results for the second moment of the pion's distribution amplitude. The lattice formulation and the phenomenological implications are briefly reviewed, with special emphasis on some subtleties that arise when the Lorentz group is replaced by the hypercubic group. Having analysed more than half of the available configurations, the result obtained is ξ^2_L = 0.06 \pm 0.02.

preprint1999arXivOpen access
L. Del DebbioM. Di PierroA. DougallC. Sachrajda
hep-lat
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Open access4 authors1 topic
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L. Del DebbioM. Di PierroA. DougallC. Sachrajda

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