Theta-induced electric dipole moment of the neutron via QCD sum rules

Authors
Pospelov, M Ritz, A
Citation
M. Pospelov et A. Ritz, Theta-induced electric dipole moment of the neutron via QCD sum rules, PHYS REV L, 83(13), 1999, pp. 2526-2529
Citations number
19
Categorie Soggetti
Physics
Journal title
PHYSICAL REVIEW LETTERS
ISSN journal
00319007 → ACNP
Volume
83
Issue
13
Year of publication
1999
Pages
2526 - 2529
Database
ISI
SICI code
0031-9007(19990927)83:13<2526:TEDMOT>2.0.ZU;2-W
Abstract
Using the QCD sum rule approach, we calculate the electric dipole moment of the neutron induced by a vacuum theta angle to approximately 40%-50% preci sion, d(n) = 1.2 x 10(-16)<(theta)over bar>e cm. Combined with the new expe rimental bound, this translates into the Limit \<(theta)over bar>\ < 6 x 10 (-10).