Regular Article - Theoretical Physics
Displaced fat-jets and tracks to probe boosted right-handed neutrinos in the model
Institute of Physics, Sachivalaya Marg, 751005, Bhubaneswar, Odisha, India
2 Homi Bhabha National Institute, BARC Training School Complex, Anushakti Nagar, 400094, Mumbai, India
3 Institute of Physics, NAWI Graz, University of Graz, Universitätsplatz 5, 8010, Graz, Austria
4 University College London, Gower Street, WC1E 6BT, London, UK
Accepted: 18 September 2022
Published online: 1 October 2022
We investigate the pair-production of Right-Handed Neutrinos (RHNs) via a boson and present the sensitivity studies of the active-sterile neutrino mixing () at the High-Luminosity run of the LHC (HL-LHC) and a future pp collider (FCC-hh). We focus on RHN states with a mass of GeV which naturally results in displaced vertices for small . Being produced through a mass resonance with TeV, the RHNs are heavily boosted, leading to collimated decay products that give rise to fat-jets. We investigate the detection prospect of dedicated signatures in the inner detector and the muon spectrometer, namely a pair of displaced fat-jets and the associated tracks, respectively. We find that both the HL-LHC and FCC-hh can be sensitive to and with the number of events reaching and , respectively. This allows probing the generation of light neutrino masses through the Seesaw mechanism.
© The Author(s) 2022
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