Is Heavy Baryon Approach Necessary?

Details Is Heavy Baryon Approach Necessary? Is Heavy Baryon Approach Necessary?

1999-10-07

arxiv.org/abs/hep-ph/9910260v2

J.Phys.G29:2303-2309,2003

Physics

High Energy Physics

High Energy Physics - Phenomenology

9 pages, 2 figures, minor changes, references added

Scientific paper

10.1088/0954-3899/29/9/322

It is demonstrated that using an appropriately chosen renormalization condition one can respect power counting within the relativistic baryon chiral perturbation theory without appealing to the technique of the heavy baryon approach. Explicit calculations are performed for diagrams including two-loops. It is argued that the introduction of the heavy baryon chiral perturbation theory was useful but not necessary.

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