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| Home > Publications database > Renormalization of the chiral pion-nucleon Lagrangian beyond next-to-leading order |
| Journal Article | PreJuSER-28853 |
; ;
2000
Elsevier
Amsterdam [u.a.]
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Abstract: The complete renormalization of the generating functional for Green Functions of quark currents between one-nucleon states in two-flavor heavy baryon chiral perturbation theory is performed to order q(4). We show how the heat-kernel method must be extended for operators orthogonal to the heavy fermion four-velocity. We develop a method of treating the multicoincidence limit arising from insertions of dimension two (and higher) operators on internal baryon propagators in self-energy graphs. As examples, we study the divergences in the isoscalar magnetic moment and the scalar form factor of the nucleon. (C) 2000 Academic Press.
Keyword(s): J
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