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Parity violating pion electroproduction off the nucleon

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Zeitschrift für Physik A Hadrons and Nuclei

Abstract

Parity violating (PV) contributions due to interference betweenγ and Z0 exchange are calculated for pion electroproduction off the nucleon. A phenomenological model with effective Lagrangians is used to determine the resulting asymmetry for the energy region between threshold andΔ(1232) resonance. TheΔ resonance is treated as a Rarita-Schwinger field with phenomenological NΔ transition currents. The background contributions are given by the usual Born terms using the pseudovectorπN Lagrangian. Numerical results for the asymmetry are presented.

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Authors and Affiliations

  1. Institut für Kernphysik, Johannes Gutenberg-Universität Mainz, D-55099, Mainz, Germany

    H. -W. Hammer & D. Drechsel

Authors
  1. H. -W. Hammer
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  2. D. Drechsel
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Correspondence to H. -W. Hammer.

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Communicated by: W. Weise

This work has been supported by the Deutsche Forschungsgemeinschaft (SFB 201)

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Hammer, H.W., Drechsel, D. Parity violating pion electroproduction off the nucleon. Z. Physik A - Hadrons and Nuclei 353, 321–331 (1995). https://doi.org/10.1007/BF01292338

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  • DOI: https://doi.org/10.1007/BF01292338

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