Structure of large [formula presented] cancellations in baryon chiral perturbation theory
date time value: article date 854
type: Entity
doi: 10.1103/PhysRevD.62.034001
crisid: 854
related by: authorship 4153
most specific type: Article
type: Document
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related by: authorship 4152
has publication venue: Physical Review D - Particles, Fields, Gravitation and Cosmology
related by: authorship 4155
most specific type: Document
volume: 62
related by: authorship 4154
e iscopus: 2-s2.0-85037197613
abstract: We show how to compute loop graphs in heavy baryon chiral perturbation theory including the full functional dependence on the ratio of the (Formula presented)-nucleon mass difference to the pion mass, while at the same time automatically incorporating the (Formula presented) cancellations that follow from the large-(Formula presented) spin-flavor symmetry of baryons in QCD. The one-loop renormalization of the baryon axial vector current is studied to demonstrate the procedure. A new cancellation is identified in the one-loop contribution to the baryon axial vector current. We show that loop corrections to the axial vector currents are exceptionally sensitive to deviations of the ratios of baryon-pion axial vector couplings from (Formula presented) values. © 2000 The American Physical Society.
estado: published
accesstype: All Open Access, Green
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origen: scopus
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page start: 10
has funding vehicle: National Science Foundation, NSF: 9457911
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issue: 3
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Physical Review D - Particles, Fields, Gravitation and Cosmology
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publication venue for: Structure of large [formula presented] cancellations in baryon chiral perturbation theory
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National Science Foundation, NSF: 9457911
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funding vehicle for: Structure of large [formula presented] cancellations in baryon chiral perturbation theory

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date: 2026-08-27T20:25:53
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