More on the tensor response of the QCD vacuum to an external magnetic field

A. Gorsky, P. N. Kopnin, A. Krikun, A. Vainshtein

Research output: Contribution to journalArticlepeer-review

18 Scopus citations

Abstract

In this paper we discuss a few issues concerning the magnetic susceptibility of the quark condensate and the Son-Yamamoto anomaly matching equation. It is shown that the Son-Yamamoto relation in the IR implies a nontrivial interplay between the kinetic and Wess-Zumino-Witten terms in the chiral Lagrangian. It is also demonstrated that in a holographic framework an external magnetic field triggers mixing between scalar and tensor fields. Accounting for this, one may calculate the magnetic susceptibility of the quark condensate to all orders in the magnetic field.

Original languageEnglish (US)
Article number086006
JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
Volume85
Issue number8
DOIs
StatePublished - Apr 23 2012

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