Quark-hadron duality in lepton scattering off nuclei

Olga Lalakulich, Natalie Jachowicz, Christophe Praet, and Jan Ryckebusch
Phys. Rev. C 79, 015206 – Published 21 January 2009

Abstract

A phenomenological study of quark-hadron duality in electron and neutrino scattering on nuclei is performed. We compute the structure functions F2 and xF3 in the resonance region within a framework that includes the Dortmund-group model for the production of the first four lowest-lying baryonic resonances and a relativistic mean-field model for nuclei. We consider four-momentum transfers between 0.2 and 2.5 GeV2. The results indicate that nuclear effects play a different role in the resonance and deep inelastic scattering (DIS) region. We find, that local duality does not work well. In the studied range of four-momentum transfers, the computed nuclear structure functions slide along the DIS curve; the integrated strength in the resonance region, however, is considerably lower than the DIS one.

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  • Received 5 August 2008

DOI:https://doi.org/10.1103/PhysRevC.79.015206

©2009 American Physical Society

Authors & Affiliations

Olga Lalakulich*, Natalie Jachowicz, Christophe Praet, and Jan Ryckebusch

  • Department of Subatomic and Radiation Physics, Ghent University, Belgium

  • *Current affiliation: Institute for Theoretical Physics, Giessen University, Germany.

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Issue

Vol. 79, Iss. 1 — January 2009

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