Corpus ID: 235390791

Computing Light-Front Wave Functions Without Light-Front Quantization: A Large-Momentum Effective Theory Approach

@inproceedings{Ji2021ComputingLW,
  title={Computing Light-Front Wave Functions Without Light-Front Quantization: A Large-Momentum Effective Theory Approach},
  author={X. Ji and Yizhuang Liu},
  year={2021}
}
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… Expand

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References

SHOWING 1-10 OF 86 REFERENCES
Quantum chromodynamics and other field theories on the light cone
Abstract In recent years light-cone quantization of quantum field theory has emerged as a promising method for solving problems in the strong coupling regime. The approach has a number of uniqueExpand
LIGHT-FRONT-QUANTIZED QCD IN LIGHT-CONE GAUGE
The light-front (LF) quantization of QCD in light-cone (l.c.) gauge is discussed. The Dirac method is employed to construct the LF Hamiltonian and theory quantized canonically. The Dyson-WickExpand
Solving two-dimensional phi4 theory by discretized light-front quantization.
TLDR
It is found that finite-mass renormalization prevents the phase transition by restricting the theory to the weak-coupling region and estimate of the critical coupling for which the mass gap vanishes is obtained. Expand
Parton physics from large-momentum effective field theory
Parton physics, when formulated as light-front correlations, are difficult to study non-perturbatively, despite the promise of light-front quantization. Recently an alternative approach to partonsExpand
Light-front quantization of the sine-Gordon model.
  • Burkardt
  • Physics, Medicine
  • Physical review. D, Particles and fields
  • 1993
It is shown how to modify the canonical light-front quantization of the (1+1)-dimensional sine-Gordon model such that the zero-mode problem of light-front quantization is avoided. The canonicalExpand
Dynamical Nucleon-Pion System via Basis Light-Front Quantization
We present the first application of the Basis Light-Front Quantization method to study a simple chiral model of the nucleon-pion system via an ab initio, non-perturbative, Hamiltonian approach. As aExpand
Basis light-front quantization approach to nucleon
We obtain the light-front wavefunctions for the nucleon in the valence quark Fock space from an effective Hamiltonian, which includes the transverse and longitudinal confinement and the one-gluonExpand
Zero-Mode Problem on the Light Front
A series of lectures are given to discuss the zero-mode problem on the light-front (LF) quantization with special emphasis on the peculiar realization of the trivial vacuum, the spontaneous symmetryExpand
On Transverse-Momentum Dependent Light-Cone Wave Functions of Light Mesons
Transverse-momentum dependent (TMD) light-cone wave functions of a light meson are important ingredients in the TMD QCD factorization of exclusive processes. This factorization allows oneExpand
Nonperturbative QCD: A weak-coupling treatment on the light front.
TLDR
The weak-coupling approach potentially reconciles the simplicity of the Constituent Quark Model with the complexities of QuantumChromodynamics, and the necessity of formulating the dynamic QCD in light-front coordinates and of dealing with the complications of renormalization which such a formulationentails. Expand
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