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Conference Papers Problems of Atomic Science and Technology Year : 2007

The High-Z hydrogen-like atom: a model for polarized structure functions

X. Artru
  • Function : Author
K. Benhizia
  • Function : Author

Abstract

The Dirac equation offers a precise analytical description of relativistic two-particle bound states, when one of the constituent is very heavy and radiative corrections are neglected. Looking at the high-Z hydrogen-like atom in the infinite momentum frame and treating the electron as a "parton", various properties usually attributed to the quark distributions in the nucleon are tested, in particular: Bj\o rken scaling; charge, helicity, transversity and momentum sum rules; existence of the parton sea; Soffer inequality; correlation between spin and transverse momentum (Sivers and Boer-Mulders effects); transverse displacement of the center-of-charge and its connection with the magnetic moment. Deep inelastic experiments with photon or positron beams at MeV energies, analogous to DIS or Drell-Yan reactions, are considered.
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Dates and versions

in2p3-00189823 , version 1 (05-12-2007)

Identifiers

  • HAL Id : in2p3-00189823 , version 1
  • ARXIV : 0712.0704

Cite

X. Artru, K. Benhizia. The High-Z hydrogen-like atom: a model for polarized structure functions. 2nd International Conference on Quantum Electrodynamics and Statistical Physics (QEDSP2006), Sep 2006, Kharkov, Ukraine. pp.98-103. ⟨in2p3-00189823⟩
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