Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
9861696 | Physics Letters B | 2005 | 6 Pages |
Abstract
The electric dipole form factor of the nucleon stemming from the QCD θ¯ term is calculated in chiral perturbation theory in leading order. To this order, the form factor originates from the pion cloud. Its momentum-dependence is proportional to a non-derivative time-reversal-violating pion-nucleon coupling, and the scale for momentum variation-appearing, in particular, in the radius of the form factor-is the pion mass.
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Nuclear and High Energy Physics
Authors
W.H. Hockings, U. van Kolck,