First Evaluation of Meson and $\tau$ lepton Spectra and Search for Heavy Neutral Leptons at ILC Beam Dump

Abstract

A beam dump experiment can be seamlessly added to the {proposed} International Linear Collider (ILC) program because the high energy electron beam should be dumped after the collision point. The ILC beam dump experiment will provide an excellent opportunity to search for new long-lived particles. Since many of them can be produced by a rare decay of standard model particles, we evaluate spectra of the mesons and $\tau$ lepton at the decay based on the PHITS and PYTHIA8 simulations. As a motivated physics case, we study the projected sensitivity of heavy neutral leptons at the ILC beam dump experiment. The heavy neutral leptons can also be produced via deep inelastic scattering and $Z$ boson decay at the ILC main detector, which we include in the projection. With the multi-track signal, the reach would be greatly extended in mass and coupling, even compared with the other proposed searches.

arXiv comment23+18 pages, 24 figures; typos fixed; discussions about the background added; Fig. 6 and appendix G added for more information; version published in JHEP

References in corpus (41)

• Parton distributions for the LHC
• The $\nu$MSM, Dark Matter and Baryon Asymmetry of the Universe
• A facility to Search for Hidden Particles at the CERN SPS: the SHiP physics case
• From eV to EeV: Neutrino Cross Sections Across Energy Scales
• Baryogenesis via neutrino oscillations
• Physics Beyond Colliders at CERN: Beyond the Standard Model Working Group Report
• New potentialities of the Liège intranuclear cascade (INCL) model for reactions induced by nucleons and light charged particles
• Long-Lived Particles at the Energy Frontier: The MATHUSLA Physics Case
• Analysis of the (N,xN') reactions by quantum molecular dynamics plus statistical decay model
• Study of relativistic nuclear collisions at AGS energies from p+Be to Au+Au with hadronic cascade model
• FASER's Physics Reach for Long-Lived Particles
• How to find neutral leptons of the nuMSM?
• A possible symmetry of the $\nu$MSM
• Phenomenology of GeV-scale Heavy Neutral Leptons
• Sterile Neutrinos
• New Electron Beam-Dump Experiments to Search for MeV to few-GeV Dark Matter
• Heavy Neutral Leptons at FASER
• Double Bangs from New Physics in IceCube
• Improved BBN constraints on Heavy Neutral Leptons
• Expression of Interest for the CODEX-b Detector
• Sterile neutrino searches via displaced vertices at LHCb
• Tau neutrino deep inelastic charged current interactions
• GeV-scale neutrinos: interactions with mesons and DUNE sensitivity
• Search for Heavy Neutrinos in $\pi \to \mu \nu$ Decay
• Constraints from the CHARM experiment on Heavy Neutral Leptons with tau mixing
• Dark Scalars and Heavy Neutral Leptons at DarkQuest
• Nuclear Shadowing in Electro-Weak Interactions
• New constraints on Heavy Neutral Leptons from Super-Kamiokande data
• Polarized deep inelastic scattering at high energies and parity violating structure functions
• An allowed window for heavy neutral leptons below the kaon mass
• Heavy QCD Axion at Belle II: Displaced and Prompt Signals
• Searching for a Sterile Neutrino in Tau Decays at B-factories
• Search for new light particles at ILC main beam dump
• Extending Sensitivity for Low-Mass Neutral Heavy Lepton Searches
• Sensitivity bounds on heavy neutrino mixing $|U_{\mu N}{|}^2$ and $|U_{\tau N}{|}^2$ from LHCb upgrade
• Beam Dump Experiment at Future Electron-Positron Colliders
• Leptophilic Gauge Bosons at ILC Beam Dump Experiment
• New physics searches at the ILC positron and electron beam dumps
• Implementation of muon pair production in PHITS and verification by comparing with the muon shielding experiment at SLAC
• Sensitivity Reach on the Heavy Neutral Leptons and $\tau$-Neutrino Mixing $|U_{\tau N}{|}^2$ at the HL-LHC
• Charged current deep inelastic scattering of muon neutrinos off ^{56}Fe

Cited by in corpus (2)

• Search for Lepton Flavor Violating Decay at FASER
• Heavy Neutral Leptons at Beam Dump Experiments of Future Lepton Colliders