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Merits and constraints of low-K2 experimental data for the proton radius determination

  • M. HoballahEmail author
  • S. Cholak
  • R. Kunne
  • C. Le Galliard
  • D. Marchand
  • G. Quéméner
  • E. Voutier
  • J. van de Wiele
Special Article - New Tools and Techniques
  • 16 Downloads

Abstract.

The question of the determination of the proton charge radius \(R_{p}\) from electron scattering data led to an unprecedented experimental effort for measurements of the electric form factor of the proton at low and very low momentum transfer in electron and muon elastic scattering. On the basis of basic properties of densities and fitting bias considerations, a procedure is developed in order to evaluate the impact of forthcoming data on \(R_{p}\). Particularly, it is shown that a 0.1% precision on these future cross section data is necessary to establish indisputably the \(R_{p}\)-value as determined from lepton scattering. An experimental method to meet this stringent constraint is further discussed in the case of the ProRad (Proton Radius) experiment at the PRAE (Platform for Research and Applications with Electrons) facility in Orsay.

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Copyright information

© Società Italiana di Fisica / Springer-Verlag GmbH Germany, part of Springer Nature 2019

Authors and Affiliations

  • M. Hoballah
    • 1
    Email author
  • S. Cholak
    • 1
    • 2
  • R. Kunne
    • 1
  • C. Le Galliard
    • 1
  • D. Marchand
    • 1
  • G. Quéméner
    • 3
  • E. Voutier
    • 1
  • J. van de Wiele
    • 1
  1. 1.Institut de Physique NucléaireUniversités Paris-Sud & Paris-Saclay, CNRS/IN2P3OrsayFrance
  2. 2.Physics FacultyTaras Shevchenko National University of KyivKyivUkraine
  3. 3.Normandie Univ, ENSICAEN, UNICAEN, CNRS/IN2P3, LPC CaenCaenFrance

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