The theta term in QCD sum rules and the electric dipole moment of the vector meson

Maxim Pospelov, Adam Ritz

Research output: Contribution to journalArticlepeer-review

18 Scopus citations

Abstract

We demonstrate that the QCD sum rule method can be successfully applied to the calculation of CP-odd electromagnetic observables induced by a vacuum θ-angle. We implement the approach in calculating the electric dipole moment of the rho meson to ∼ 30% precision, and find that the result can also be explicitly related to the vacuum topological susceptibility.

Original languageEnglish (US)
Pages (from-to)243-258
Number of pages16
JournalNuclear Physics B
Volume558
Issue number1-2
DOIs
StatePublished - Oct 4 1999

Bibliographical note

Funding Information:
We would like to thank M. Shifman and A. Vainshtein for many valuable discussions and comments. This work was supported in part by the Department of Energy under Grant No. DE-FG02-94ER40823.

Fingerprint Dive into the research topics of 'The theta term in QCD sum rules and the electric dipole moment of the vector meson'. Together they form a unique fingerprint.

Cite this