Preprint
The Forward Neutrino Flux and its Secondaries at a 10 TeV Muon Collider
arXiv
arXiv
08/03/2026
DOI: 10.48550/arxiv.2608.02718
Abstract
Muon decays in a muon collider ring would produce TeV neutrino and antineutrino beams of electron and muon flavor. We study this flux in the forwardμ⁺andμ⁻beam directions at a 10 TeV muon collider, introducing MINT, a dedicated Monte Carlo simulation to model neutrino fluxes including the muon beam dynamics. We find that a benchmark detector at 5 km from the interaction point would see about𝓞(10⁹)neutrino interactions per year in a∼3tonne fiducial volume with a beam spot size of𝓞(1)meter. We calculate the number of secondary muons and neutrinos generated by neutrino interactions in the rock upstream of the forward detectors and find that about two secondary high-energy and highly polarized muons from the rock would cross each detector per bunch crossing. Neutrino productions of charmed mesons and taus in the rock generate a smallν_(τ)+\barν{_(τ)}{}{s}econdary flux, with𝓞(0.2)events per year in the detectors, likely too small to be observed. Wrong-sign neutrinos from similar processes, such asνₑ+\barν{_(μ)}{}{i}n theμ⁻beam, are more numerous but still of𝓞(10⁻⁹)of the number of TeV neutrino interactions. Finally, we outline how the large forward neutrino exposure can be used to search for beyond-the-Standard-Model particles produced in neutrino interactions, with examples of heavy neutral leptons coupled to electron and muon flavors through mixing or electromagnetic dipole operators.
Details
- Title: Subtitle
- The Forward Neutrino Flux and its Secondaries at a 10 TeV Muon Collider
- Creators
- Ju-Yeol Choi - University of IowaMatheus Hostert - University of IowaPeiran Li - University of MinnesotaZhen Liu - University of Minnesota
- Resource Type
- Preprint
- Publication Details
- arXiv
- DOI
- 10.48550/arxiv.2608.02718
- ISSN
- 2331-8422
- Publisher
- arXiv
- Language
- English
- Date posted
- 08/03/2026
- Academic Unit
- Physics and Astronomy
- Record Identifier
- 9985217144102771
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