ab initio approach to the non-perturbative scalar yukawa model
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ID: 204267
2015
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Abstract
We report on the first non-perturbative calculation of the scalar Yukawa model in the single-nucleon sector up to four-body Fock sector truncation (one “scalar nucleon” and three “scalar pions”). The light-front Hamiltonian approach with a systematic non-perturbative renormalization is applied. We study the n-body norms and the electromagnetic form factor. We find that the one- and two-body contributions dominate up to coupling α≈1.7. As we approach the coupling α≈2.2, we discover that the four-body contribution rises rapidly and overtakes the two- and three-body contributions. By comparing with lower sector truncations, we show that the form factor converges with respect to the Fock sector expansion.
| Reference Key |
li2015physicsab
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|---|---|
| Authors | ;Yang Li;V.A. Karmanov;P. Maris;J.P. Vary |
| Journal | ACS chemical biology |
| Year | 2015 |
| DOI |
10.1016/j.physletb.2015.07.014
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| URL | |
| Keywords | Keywords not found |
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