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\(g_1\) at low x and low \(Q^2\) with Polarized ep colliders

  • S.D. Bass
  • A. De Roeck
Theoretical physics

Abstract.

Measurements of \(g_1\) at low x and low \(Q^2\) are expected to provide a sensitive probe of the transition from Regge to perturbative QCD dynamics, offering a new testing ground for models of small x physics. We discuss the potential of polarized ep colliders (Polarized HERA and eRHIC) to investigate this physics – varying \(Q^2\) between 0.01 and 1 GeV\(^2\)– and to constrain the high-energy part of the Drell-Hearn-Gerasimov sum-rule for polarized photoproduction.

Keywords

Testing Ground 
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Copyright information

© Springer-Verlag Berlin Heidelberg 2000

Authors and Affiliations

  • S.D. Bass
    • 1
  • A. De Roeck
    • 2
  1. 1.Physik Department, Technische Universität München, 85747 Garching, Germany DE
  2. 2.CERN, 1211 Geneva 23, Switzerland CH

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