摘要: We explore a dark matter model extending the standard particle content by one fermionic SU(2) L triplet and two quadruplets, leading to minimal realistic UV-complete of electroweakly interacting which interacts with Higgs doublet at tree level via kinds Yukawa couplings. After electroweak symmetry-breaking, physical spectrum sector consists three Majorana fermions, singly charged doubly fermion, lightest neutral fermion χ 1 0 serving as candidate. A typical exhibits large degree degeneracy in mass between we examine one-loop corrections differences ensure that is neutral. identify regions parameter space for abundance saturated cosmology, including coannihilation channels, find this typically achieved $$ {m}_{\chi_1^0}\sim 2.4 $$ TeV. Constraints from precision measurements, searches scattering nuclei, annihilation are important, but leave open viable range thermal relic.
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