Simulation of the process $e^{+}{e}^{-}\to W^{+}{W}^{-}$ with the heavy right-handed neutrino exchange at 1 TeV future lepton colliders

Abstract

We study potential contribution of the heavy right-handed neutrino exchange in the process $e^{+}{e}^{-}\to W^{+}{W}^{-}$. This process is sensitive to heavy neutrinos with masses larger than $\sqrt{s}$. The Monte Carlo simulation of the studied process is performed assuming the Seesaw type-I model, where heavy right-handed neutrinos (heavy neutral leptons, HNL) are introduced in the leptonic sector. Within the Standard Model (SM), the process has a large cross section described by diagrams with $s$-channel $Z/\gamma$ exchange and $t$-channel active neutrino exchange. Respectively, the $t$-channel right-handed neutrino exchange amplitude will interfere with these SM amplitudes. However, the angular distributions of the $W$ boson production and decay are different for the right-handed neutrino and SM amplitudes. That can be used to evaluate potential HNL contribution using the extended likelihood method. The simulation of the $e^{+}{e}^{-}\to W^{+}{W}^{-}$ process is performed at the 1 TeV center-of-mass energy and polarisation $P_{e^{+}{e}^{-}}$ of (20 %, -80 %), which is a standard option for the future linear $e^{+}{e}^{-}$ collider ILC. Both $W$ bosons are reconstructed from two hadronic jets. Simulation of the SM background processes is also done. The beam-induced backgrounds and the initial state radiation (ISR) effects are taken into account. The majority of background processes are effectively suppressed by the cuts on the invariant masses of two and four jets. Finally, we obtain upper limits on the mixing parameter $|V_{eN}{|}^2$ as a function of $M(N)$.

arXiv comment7 pages, 8 figures, 1 table

References in corpus (33)

• Evidence for oscillation of atmospheric neutrinos
• Direct Evidence for Neutrino Flavor Transformation from Neutral-Current Interactions in the Sudbury Neutrino Observatory
• DELPHES 3, A modular framework for fast simulation of a generic collider experiment
• First Results from KamLAND: Evidence for Reactor Anti-Neutrino Disappearance
• The Search for Heavy Majorana Neutrinos
• WHIZARD: Simulating Multi-Particle Processes at LHC and ILC
• Heavy Majorana Neutrinos in the Effective Lagrangian Description: Application to Hadron Colliders
• Neutrinoless double beta decay versus other probes of heavy sterile neutrinos
• Operators up to Dimension Seven in Standard Model Effective Field Theory Extended with Sterile Neutrinos
• The Present and Future Status of Heavy Neutral Leptons
• How Magnetic is the Dirac Neutrino?
• CEPC Technical Design Report -- Accelerator (v2)
• Right-handed neutrino magnetic moments
• Fully-Automated Precision Predictions for Heavy Neutrino Production Mechanisms at Hadron Colliders
• Heavy Majorana Neutrinos from $W\gamma$ Fusion at Hadron Colliders
• Prospects of Heavy Neutrino Searches at Future Lepton Colliders
• Dimension Seven Operators in Standard Model with Right handed Neutrinos
• Heavy Neutrinos with Dynamic Jet Vetoes: Multilepton Searches at $\sqrt{s}=14,27,$ and $100$ TeV
• Operator Bases in Effective Field Theories with Sterile Neutrinos: $d\le 9$
• Broadening the Higgs Boson with Right-Handed Neutrinos and a Higher Dimension Operator at the Electroweak Scale
• Neutrino Masses from Loop-Induced Dirac Yukawa Couplings
• Jet reconstruction at high-energy lepton colliders
• Systematic Study of One-Loop Dirac Neutrino Masses and Viable Dark Matter Candidates
• Minimal Realizations of Dirac Neutrino Mass from Generic One-loop and Two-loop Topologies at $d=5$
• Heavy neutrinos at future linear e${}^{+}$e${}^{-}$ colliders
• Seesaw mechanism at electron-electron colliders
• Search for heavy neutral leptons in final states with electrons, muons, and hadronically decaying tau leptons in proton-proton collisions at $\sqrt{s}$ = 13 TeV
• Search for long-lived heavy neutral leptons decaying in the CMS muon detectors in proton-proton collisions at $\sqrt{s}$ = 13 TeV
• Search for long-lived heavy neutral leptons with lepton flavour conserving or violating decays to a jet and a charged lepton
• Loop Effects of Exotic Leptons on Vector-Boson Pair Production at e^+e^- Colliders
• Search for heavy right-handed Majorana neutrinos in the decay of top quarks produced in proton$-$proton collisions at $\sqrt{s}$ = 13 TeV with the ATLAS detector
• A possible search for Majorana neutrinos at future lepton colliders
• Physics at e-e- Colliders