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Chirally-odd twist-3 distribution function ea(x) in the chiral quark-soliton model

P. Schweitzer

  • Dipartimento di Fisica Nucleare e Teorica, Università degli Studi di Pavia, Pavia, Italy

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Phys. Rev. D 67, 114010 – Published 9 June, 2003

DOI: https://doi.org/10.1103/PhysRevD.67.114010

Abstract

The chirally-odd twist-3 nucleon distribution ea(x) is studied in the large-Nc limit in the framework of the chiral quark-soliton model at a low normalization point of about 0.6GeV. The remarkable result is that in the model ea(x) contains a δ-function-type singularity at x=0. The regular part of ea(x) is found to be sizable at the low scale of the model and in qualitative agreement with bag model calculations.

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Phys. Rev. D 67, 114010– Published 9 June, 2003
  • Received 4 March 2003

© 2003 American Physical Society

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