Neutron Electric Dipole Moment In The Standard Model: Valence Quark Contributions

Physics – High Energy Physics – High Energy Physics - Phenomenology

Scientific paper

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8 pages, revtex

Scientific paper

10.1103/PhysRevLett.78.4339

We present a complete three-loop calculation of the electric dipole moment of
the $u$ and $d$ quarks in the Standard Model. For the $d$ quark, more relevant
for the experimentally important neutron electric dipole moment, we find
cancellations which lead to an order of magnitude suppression compared with
previous estimates.

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