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arXiv · 2002.06489

On the light-front wave functions of quarkonia

Pieter Maris·Shaoyang Jia·Meijian Li·Yang Li·Shuo Tang·James P. Vary
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Abstract

The light-front wave functions of hadrons allow us to calculate a wide range of physical observables; however, the wave functions themselves cannot be measured. We discuss recent results for quarkonia obtained in basis light-front quantization using an effective Hamiltonian with a confining model in both the transverse and longitudinal directions and with explicit one-gluon exchange. In particular, we focus on the numerical convergence of the basis expansion, as well as the asymptotic behavior of the light-front wave functions. We also illustrate that, for mesons with unequal quark masses, the maxima of the light-front wave functions depend in a non-trivial way on the valence quark-mass difference.

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Pieter Maris, Shaoyang Jia, Meijian Li, Yang Li, Shuo Tang, James P. Vary. 2020-02-16. On the light-front wave functions of quarkonia. https://doi.org/10.22323/1.374.0007

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