Basis light-front quantization for a chiral nucleon-pion Lagrangian
Abstract
We present the first application of the basis light-front quantization method to a simple chiral model of the nucleon-pion system as a relativistic bound state for the physical proton. The light-front mass-squared matrix of the nucleon-pion system is obtained within a truncated basis. The mass and the corresponding light-front wave function (LFWF) of the proton are computed by numerical diagonalization of the resulting mass-squared matrix. With the boost-invariant LFWF, we calculate the probability density distribution of the pion's longitudinal momentum fraction and the Dirac form factor of the proton.
- Publication:
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Physical Review C
- Pub Date:
- March 2020
- DOI:
- 10.1103/PhysRevC.101.035202
- arXiv:
- arXiv:1911.10762
- Bibcode:
- 2020PhRvC.101c5202D
- Keywords:
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- Nuclear Theory
- E-Print:
- 36 pages, 3 figures