Nucleon deformation

A status report
  • C. N. Papanicolas
Conference paper

Abstract

The conjectured deformation of hadrons and its experimental verification offer a particularly fer­tile ground for understanding the intricate dynamics of their constituents and QCD at the confiment scale. The detailed study of the NΔ transition is viewed as the preferred method of experimental investigation of this central issue in hadronic physics. A brief overview of the field is presented, followed by a presentation of the most recent results from Bates NΔ program. The new Bates/OOPS data at Q 2 = 0.127(GeV/c)2 yield Rsm = (−6.27±0.32stat+sys ± 0.l0rode1)% and Rem = (−2.00±0.40stat+sys ± 0.27model)% and they exclude a spherical nucleon and/or Δ. The magnitude and the origin of the deformation is the focus of the ongoing and planned investigations.

Keywords

Reso Prolate cosB 

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Copyright information

© Springer-Verlag Berlin Heidelberg 2003

Authors and Affiliations

  • C. N. Papanicolas
    • 1
  1. 1.University of Athens and Institute of Accelerating Systems and ApplicationsAthensGreece

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