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

Andrzej Czarnecki·Bernd Krause
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Abstract

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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Andrzej Czarnecki, Bernd Krause. 1997-04-18. Neutron Electric Dipole Moment In The Standard Model: Valence Quark Contributions. https://doi.org/10.1103/physrevlett.78.4339

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