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Hunting for CP-violating axionlike particle interactions

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arxiv 2010.13760 v3 pith:4B5EZ6DK submitted 2020-10-26 hep-ph hep-ex

classification hep-phhep-ex
keywords cp-violatingedmsinteractionsalpsatomsaxion-likeaxionlikeclassify
verification ladder T0 review T1 audit T2 compute T3 formal
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The impact of axion-like particles (ALPs) on the search of permanent electric dipole moments (EDMs) of molecules, atoms, nuclei and nucleons is systematically investigated. We classify first the full set of CP-violating Jarlskog invariants emerging in the ALP effective field theory (EFT) containing operators up to dimension-5. Then, we evaluate the leading short-distance effects to the EDMs up to two-loop order. The high sensitivity of EDMs to CP-violating ALP interactions is emphasised exploiting both the current and projected experimental sensitivities.

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Cited by 2 Pith papers

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

  1. Positivity and partial wave unitarity bounds on ALP theories via amplitude methods

    hep-ph 2025-10 conditional novelty 6.0 of 10

    Complete partial-wave unitarity and positivity bounds are derived for ALP effective interactions up to dimension 8, with new SMEFT positivity constraints as a byproduct.

  2. 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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