We use the LHC Higgs data to derive updated constraints on electroweak-scale sterile neutrinos that naturally occur in many low-scale seesaw extensions of the Standard Model to explain the neutrino masses. We also analyze the signal sensitivity for a new final state involving a single charged lepton and two jets with missing energy, which arises from the decay of sterile neutrinos produced through the Higgs and W, Z boson mediated processes at the LHC. Future prospects of these sterile neutrino signals in precision Higgs measurements, as well as at a future 100 TeV collider, are also discussed.
Bibliographical noteFunding Information:
The work of A.D. is supported by the Korea Neutrino Research Center which is established by the National Research Foundation of Korea (NRF) grant funded by the Korea government (Ministry of Science, ICT and Future Planning, MSIP) (Grant No. 2009-0083526). The work of C.S.K. is supported by the NRF grant funded by the Korean government of the Ministry of Education, Science & Technology (MEST, Grant No. 2016R1D1A1A02936965).
All Science Journal Classification (ASJC) codes
- Physics and Astronomy (miscellaneous)