Computing light-front wave functions without light-front quantization: A large-momentum effective theory approach

  title={Computing light-front wave functions without light-front quantization: A large-momentum effective theory approach},
  author={Xiangdong Ji and Yizhuang Liu},
  journal={Physical Review D},
Light-front wave functions play a fundamental role in the light-front quantization approach to QCD and hadron structure. However, a naive implementation of the light-front quantization suffers from various subtleties including the well-known zero-mode problem, the associated rapidity divergences which mixes ultra-violet divergences with infrared physics, as well as breaking of spatial rotational symmetry. We advocate that the light-front quantization should be viewed as an effective theory in… 

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