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 → Δ 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 → Δ 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.
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Papanicolas, C.N. (2003). Nucleon deformation. In: Elster, C., Speth, J., Walcher, T. (eds) Refereed and selected contributions from International Conference on Quark Nuclear Physics. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-662-09712-0_3
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DOI: https://doi.org/10.1007/978-3-662-09712-0_3
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