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Antiparticle Contribution in the Cross Ladder Diagram for Two Boson Propagation in the Light-front

J. H. O. Sales·A. T. Suzuki
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Abstract

In the light-front milieu, there is an implicit assumption that the vacuum is trivial. By this " triviality " is meant that the Fock space of solutions for equations of motion is sectorized in two, one of positive energy k- and the other of negative one corresponding respectively to positive and negative momentum k+. It is assumed that only one of the Fock space sector is enough to give a complete description of the solutions, but in this work we consider an example where we demonstrate that both sectors are necessary.

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J. H. O. Sales, A. T. Suzuki. 2005-10-18. Antiparticle Contribution in the Cross Ladder Diagram for Two Boson Propagation in the Light-front. https://arxiv.org/abs/hep-th/0510157

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