TY - JOUR
T1 - The electric dipole form factor of the nucleon
AU - Hockings, W. H.
AU - Van Kolck, U.
N1 - Funding Information:
We thank Claudio Maekawa, Steve Puglia and German Valencia for discussions, and the Institute for Nuclear Theory at the University of Washington for hospitality when part of this work was carried out. This research was supported in part by the US Department of Energy (W.H.H., U.v.K.) and the Alfred P. Sloan Foundation (U.v.K.).
PY - 2005/1/13
Y1 - 2005/1/13
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=27144446401&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=27144446401&partnerID=8YFLogxK
U2 - 10.1016/j.physletb.2004.11.043
DO - 10.1016/j.physletb.2004.11.043
M3 - Article
AN - SCOPUS:27144446401
SN - 0370-2693
VL - 605
SP - 273
EP - 278
JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
IS - 3-4
ER -