Restoration of rotational invariance of bound states on the light front

Details Restoration of rotational invariance of bound states on the light front Restoration of rotational invariance of bound states on the light front

1999-10-05

arxiv.org/abs/nucl-th/9910013v2

Phys.Rev.C61:064005,2000

Physics

Nuclear Physics

Nuclear Theory

20 pages, 6 figures, uses feynMF; changed typos, clarified use of angular momentum

Scientific paper

10.1103/PhysRevC.61.064005

We study bound states in a model with scalar nucleons interacting via an exchanged scalar meson using the Hamiltonian formalism on the light front. In this approach manifest rotational invariance is broken when the Fock space is truncated. By considering an effective Hamiltonian that takes into account two meson exchanges, we find that this breaking of rotational invariance is decreased from that which occurs when only one meson exchange is included. The best improvement occurs when the states are weakly bound.

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