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Soft contribution to the pion form factor from light-cone QCD sum rules

URN to cite this document:
urn:nbn:de:bvb:355-epub-139892
Braun, Vladimir M. ; Halperin, Igor
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Date of publication of this fulltext: 12 Apr 2010 12:04



Abstract

We propose a simple method to calculate the pion form factor at not very large momentum transfers, which combines the technique of the QCD sum rules with the description of the pion in terms of the set of wave functions of increasing twist. This approach allows one to calculate the soft (end point) contribution to the form factor in a largely model-independent way. Our results confirm existing ...

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