Current renormalization in finite volume

Jie Hu, Fu Jiun Jiang, Brian C. Tiburzi

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

For finite volume field theories with discrete translational invariance, conserved currents can be additively renormalized by infrared effects. We demonstrate this for pions using chiral perturbation theory coupled to electromagnetism in a periodic box. Gauge invariant single particle effective theories are constructed to explain these results. In such theories, current renormalization arises from operators involving the zero mode of the gauge field. No contradictions with Ward identities, or low-energy theorems are encountered.

Original languageEnglish
Pages (from-to)350-357
Number of pages8
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume653
Issue number2-4
DOIs
Publication statusPublished - 2007 Sep 20

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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