Self-consistent calculation of parton distributions at low normalization point in the chiral quark-soliton model

Details Self-consistent calculation of parton distributions at low normalization point in the chiral quark-soliton model Self-consistent calculation of parton distributions at low normalization point in the chiral quark-soliton model

1997-12-18

arxiv.org/abs/hep-ph/9712447v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

14 pages, LaTeX, 4 figures included using epsf

Scientific paper

We calculate the isosinglet unpolarized quark-- and antiquark distributions at a low normalization point in the large--$N_c$ limit. The nucleon is described as a self-consistent soliton solution of the effective chiral theory. The ultraviolet cutoff is implemented by a Pauli-Villars subtraction. The quark and antiquark distributions satisfy the momentum as well as the baryon number sum rule, corresponding to ``constituent'' quarks whose structure is not yet resolved at the low scale. Already at this level a sizable number of antiquarks is present.

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