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Probing baryon asymmetry of the Universe at LHC and SHiP
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The origin of the baryon asymmetry of the Universe (BAU) is one of the major puzzles beyond the Standard Model. Detecting the particles responsible for the generation of the BAU would enormously boost our understanding of physics of the early Universe. Here we demonstrate that searches for displaced vertices at ATLAS, CMS and LHCb allow detecting heavy neutral leptons (HNL) with parameters that can simultaneously lead to the successful generation of the BAU and explain the masses and oscillations of active neutrinos. The combination of a dedicated LHC search program and a complementary Intensity Frontier experiment (such as SHiP) will allow exploring a sizeable part of the "minimal HNL baryogenesis" parameter space.
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Cited by 2 Pith papers
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Lepton-Trijet and Displaced Vertex Searches for Heavy Neutrinos at Future Electron-Proton Colliders
Heavy neutrino searches at future ep colliders could reach mixing angles down to |θeθμ| ~ 10^-7 via lepton-trijet events and |θe|^2 ~ 10^-8 via displaced vertices.
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Displaced heavy neutrinos from $Z'$ decays at the LHC
Displaced vertex searches at the HL-LHC could probe heavy neutrino mixings down to |V_lN|^2 ~ 10^-17 for Z'-produced neutrinos in U(1)_X and U(1)_{B-L} models.
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