Higher twist and higher order contributions to the pion electromagnetic form factor

Miller, G. A. ; Pasupathy, J. (1994) Higher twist and higher order contributions to the pion electromagnetic form factor Zeitschrift fur Physik A: Hadrons and Nuclei, 348 (2). pp. 123-127. ISSN 0939-7922

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Official URL: http://www.springerlink.com/content/v7u162m2404613...

Related URL: http://dx.doi.org/10.1007/BF01289600

Abstract

The O(mπ4/(mu+md)2Q2 ) andO ( α S 2 ) corrections to the leading term of the perturbative QCD calculation of the pion electromagnetic form factor are examined numerically. Both sets of terms provide significant corrections for values of Q2 between 1 and 15 GeV2/c2.

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