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arXiv · 2111.09397

Electric dipole moments from colour-octet scalars

Hector Gisbert·Víctor Miralles·Joan Ruiz-Vidal
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Abstract

We present the contributions to electric dipole moments (EDMs) induced by the Yukawa couplings of an additional electroweak doublet of colour-octet scalars. The full set of one-loop diagrams and the enhanced higher-order effects from Barr-Zee diagrams are computed for the quark (chromo-)EDM, along with the two-loop contributions to the Weinberg operator. Using the stringent experimental upper limits on the neutron EDM, constraints on the parameter space of this model are derived.

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Hector Gisbert, Víctor Miralles, Joan Ruiz-Vidal. 2021-11-17. Electric dipole moments from colour-octet scalars. https://doi.org/10.1007/jhep04(2022)077

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