Chiral [Formula Presented]-exchange [Formula Presented] potentials: Results for representation-invariant classes of diagrams

Publikation: Beitrag in FachzeitschriftArtikelBegutachtung

3 Zitate (Scopus)

Abstract

We calculate in (two-loop) chiral perturbation theory the local [Formula Presented] potentials generated by certain classes of three-pion exchange diagrams. We stress that the chiral [Formula Presented]-contact vertex depends on the particular choice of the interpolating pion-field and, therefore, one has to consider representation-invariant classes of diagrams by supplementing graphs involving the chiral [Formula Presented] vertex. We find that the resulting isovector spin-spin and tensor [Formula Presented] potentials are negligibly small for [Formula Presented] fm. One can conclude that the effects of uncorrelated chiral [Formula Presented] exchange in the [Formula Presented] interaction are very small and therefore of no practical relevance.

OriginalspracheEnglisch
Seiten (von - bis)5
Seitenumfang1
FachzeitschriftPhysical Review C - Nuclear Physics
Jahrgang61
Ausgabenummer1
DOIs
PublikationsstatusVeröffentlicht - 2000

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