Inclusive Displaced Vertex Searches for Heavy Neutral Leptons at the LHC

Abstract

The inclusion of heavy neutral leptons to the Standard Model particle content could provide solutions to many open questions in particle physics and cosmology. The modification of the charged and neutral currents from active-sterile mixing of neutral leptons can provide novel signatures in Standard Model processes. We revisit the displaced vertex signature that could occur in collisions at the LHC via the decay of heavy neutral leptons with masses of a few GeV emphasizing the implications of flavor, kinematics, inclusive production and number of these extra neutral fermions. We study in particular the implication on the parameter space sensitivity when all mixings to active flavors are taken into account. We also discuss alternative cases where the new particles are produced in a boosted regime.

24 pages, 10 figures. Extended analysis. Published version

References in corpus (16)

• The automated computation of tree-level and next-to-leading order differential cross sections, and their matching to parton shower simulations
• An Introduction to PYTHIA 8.2
• FeynRules - Feynman rules made easy
• MadAnalysis 5, a user-friendly framework for collider phenomenology
• Distinguishing seesaw models at LHC with multi-lepton signals
• Phenomenology of GeV-scale Heavy Neutral Leptons
• Heavy neutrino signals at large hadron colliders
• Direct Bounds on Electroweak Scale Pseudo-Dirac Neutrinos from $\sqrt{s}=8$ TeV LHC Data
• Electroweak scale seesaw and heavy Dirac neutrino signals at LHC
• Heavy Majorana Neutrinos from $W\gamma$ Fusion at Hadron Colliders
• Double Bangs from New Physics in IceCube
• Heavy neutral fermions at the high-luminosity LHC
• Long-lived Heavy Neutrinos from Higgs Decays
• Sterile neutrino searches via displaced vertices at LHCb
• Effective Majorana mass matrix from tau and pseudoscalar meson lepton number violating decays
• Safe Jet Vetoes

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