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The twist-3 parton distribution function e(x) in large-Nc chiral theory | | C.Cebulla
; J.Ossmann
; P.Schweitzer
; D.Urbano
; | | Date: |
16 Oct 2007 | | Abstract: | The chirally-odd twist-3 parton distribution function e(x) of the nucleon is
studied in the large-Nc limit in the framework of the chiral quark-soliton
model. It is demonstrated that in spite of properties not shared by other
distribution functions, namely the appearance of a delta(x)-singularity and
quadratic divergences in e(x), an equally reliable calculation is possible.
Among the most remarkable results obtained in this work is the fact that the
coefficient of the delta(x)-singularity can be computed exactly in this model,
avoiding involved numerics. Our results complete existing studies in
literature. | | Source: | arXiv, 0710.3103 | | Services: | Forum | Review | PDF | Favorites | |
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