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

@article{Ji2021ComputingLW, 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}, 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…

## 8 Citations

### Nonperturbative determination of the Collins-Soper kernel from quasitransverse-momentum-dependent wave functions

- PhysicsPhysical Review D
- 2022

In the framework of large-momentum eﬀective theory at one-loop matching accuracy, we perform a lattice calculation of the Collins-Soper kernel which governs the rapidity evolution of…

### Rapidity evolution of the entanglement entropy in quarkonium: Parton and string duality

- PhysicsPhysical Review D
- 2022

We investigate the quantum entanglement in rapidity space of the soft gluon wave function of a quarkonium, in theories with non-trivial rapidity evolutions. We found that the rapidity evolution…

### Gluon Transverse-Momentum-Dependent Distributions from Large-Momentum Effective Theory

- Physics
- 2022

: We demonstrate that gluon transverse-momentum-dependent parton distribution functions (TMDPDFs) can be extracted from lattice calculations of appropriate Euclidean correlations in large-momentum…

### Factorization connecting continuum & lattice TMDs

- Physics, Computer ScienceJournal of High Energy Physics
- 2022

It is shown that there is no mixing between various quark flavors or gluons when matching Collins and quasi TMDs, making the lattice calculation of individual flavors and gluon T MDs easier than anticipated.

### One-loop matching for gluon lattice TMDs

- Physics, Computer ScienceJournal of High Energy Physics
- 2022

This work focuses on the leading-power factorization formula connecting the lattice quasi-TMD and continuum Collins TMD for gluons, and calculates the one-loop gluon matching coefficient, which is known to be independent of spin and exhibits no mixing with quarks.

### GTMDs and the factorization of exclusive double Drell-Yan

- Physics
- 2022

Di ﬀ erent exclusive processes have been proposed to access the generalized transverse momentum dependent distributions (GTMDs) with no proof of factorization, which allows to rigorously deﬁne the…

### Exclusive Double Drell-Yan factorization and GTMDs

- Proceedings of Particles and Nuclei International Conference 2021 — PoS(PANIC2021)
- 2022

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