## Spin Structure at Long Distance: Workshop ProceedingsJian-Ping Chen, Wally Melnitchouk, Karl Slifer Spin structure data at low momentum transfer, or equivalently at large light-cone distance, are highly valuable for investigating fundamental properties of the nucleon, such as the hyperfine splitting of the hydrogen atom and spin sum rules. Long distance also represents the region most suitable for applications of chiral effective theory an effective approach to QCD. This workshop gathered the field's experts to discuss the latest results and to plot a course forward for the Jefferson Lab spin physics program. |

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### Contents

Proton Structure and Atomic Physics | 18 |

The g2 Structure Function | 26 |

What Can We Learn from the Breaking of the WandzuraWilczek | 35 |

Copyright | |

14 other sections not shown

### Common terms and phrases

Airapetian Amarian amplitude asymmetries Baryon BC sum rule beam energy Chen Chiral Perturbation Theory ChPT CLAS Collaboration Compton scattering corrections cross section degrees of freedom Deur deuteron Drechsel elastic error bars extracted FIGURE form factor forward spin polarizabilities GDH sum rule GeV2 gluon hadronic Hall helicity high Q2 higher twist hyperfine splitting inelastic Jefferson Lab Jefferson Laboratory JLab experiments kinematic lattice QCD Lett Long Distance longitudinally low Q2 magnetic MAID Mainz Melnitchouk moments momentum transfer neutron structure functions Nucl nuclear nucleon spin structure nucleon structure Operator Product Expansion P. L. Anthony photon point Phvs Phys Physics pion polarized target pQCD predictions preliminary proton proton and neutron proton structure PT calculations quark quark-gluon correlations quark-hadron duality resonance region SLAC Slifer spin structure functions spin-dependent systematic errors theoretical TJNAF transversely polarized unpolarized structure function virtual photon world data