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Nucleon deformation

A status report
  • C. N. PapanicolasEmail author
Article

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 \(N\rightarrow\Delta\) 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 \(N\rightarrow\Delta\) program. The new Bates/OOPS data at Q 2 = 0.127 GeV/c 2) yield \(R_{SM} = (-6.27\pm 0.32_{\rm stat + sys} \pm 0.10_{\rm model})\%\) and \(R_{EM} = (-2.00\pm 0.40_{\rm stat + sys} \pm 0.27_{\rm model})\%\) and they exclude a spherical nucleon and/or \(\Delta\). The magnitude and the origin of the deformation is the focus of the ongoing and planned investigations.

Keywords

Experimental Investigation Recent Result Prefer Method Experimental Verification Central Issue 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag Berlin/Heidelberg 2003

Authors and Affiliations

  1. 1.University of Athens and Institute of Accelerating Systems and Applications,Athens,Greece

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