Note on a Positronium Model from Flow Equations in Front Form Dynamics

Details Note on a Positronium Model from Flow Equations in Front Form Dynamics Note on a Positronium Model from Flow Equations in Front Form Dynamics

1998-08-13

arxiv.org/abs/hep-th/9808077v2

Int.J.Mod.Phys. A16S1C (2001) 987-993

Physics

High Energy Physics

High Energy Physics - Theory

7 pp., 3 figures, uses ijmpa1.sty, version to be published in Int.Jour.Mod.Phys.(Suppl.)

Scientific paper

In this note we address the problem of solving for the positronium mass spectrum. We use front-form dynamics together with the method of flow equations. For a special choice of the similarity function, the calculations can be simplified by analytically integrating over the azimuthal angle. One obtains an effective Hamiltonian and we solve numerically for its spectrum. Comparing our results with different approaches we find encouraging properties concerning the cutoff dependence of the results.

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