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Electric dipole moments from colour-octet scalars

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arxiv 2111.09397 v2 pith:JLKX2TMY submitted 2021-11-17 hep-ph hep-ex

Hector Gisbert , Víctor Miralles , Joan Ruiz-Vidal This is my paper
classification hep-phhep-ex
keywords colour-octetcontributionsdiagramsdipoleelectricmomentsscalarsadditional
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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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Cited by 1 Pith paper

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Constraining ALP-Top Interaction from the Chromoelectric Dipole Moment of the Top Quark

    hep-ph 2025-07 conditional novelty 6.0 of 10

    The paper derives the one- and two-loop top quark CEDM induced by a CP-violating ALP at q^2 = m_t^2 and uses it to set new bounds on the ALP-top coupling, with the neutron EDM giving the strongest of the three new limits.

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