Limits on scalar dark matter interactions from radiative corrections
arxiv(2024)
摘要
There is limited information about interaction strength of scalar dark matter
candidate with hadrons and leptons for scalar particle mass exceeding 10^-3
eV while its interaction with photon is well-studied. The scalar-photon
coupling constant receives quantum corrections from one-loop Feynman diagrams
which involve the scalar-lepton, scalar-quark and scalar-W boson vertices. We
calculate these one-loop quantum corrections and find new limits on the scalar
particle interactions with electron, muon, tau, quarks, nucleons, gluons and W
boson for m_ϕ<15 MeV by re-purposing the results of experiments
measuring the scalar-photon interaction. Limits on interactions with heavy
leptons and quarks have been obtained for the first time, limits on other
interactions in certain mass intervals are 2 to 15 orders of magnitude stronger
than those presented in previous publications.
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