New avenues for the neutrino dipole portal exploration at the energy frontier
Fuente:
arXiv
Guardado en:
| Autor principal: | |
|---|---|
| Formato: | Preprint |
| Publicado: |
2025
|
| Materias: | |
| Acceso en línea: | |
| Etiquetas: |
Agregar Etiqueta
Sin Etiquetas, Sea el primero en etiquetar este registro!
|
| _version_ | 1866908469062270976 |
|---|---|
| author | Vignaroli, Natascia |
| author_facet | Vignaroli, Natascia |
| contents | We present a comprehensive and gauge-invariant study of the neutrino dipole portal at the energy frontier. Assuming negligible active-sterile mixing, we analyze sterile neutrino production via dimension-6 dipole operators coupling to the electroweak field strengths. The analysis incorporates both single- and double-gauge-boson effective interactions. We investigate novel collider signatures at the HL-LHC, the FCC-hh -- studied here in this context for the first time -- and a 10 TeV muon collider. Particular emphasis is placed on electroweak boson-initiated processes, which dominate in the high-mass regime above $\sim$1 TeV. At the muon collider, these VBF-like topologies enable production even when the dipole couples to non-muonic flavors, offering a unique and sensitive probe for different flavor scenarios. We derive sensitivity projections for various theoretical benchmarks, reaching dipole couplings down to $d_γ\sim 6\times10^{-7}$ GeV$^{-1}$ at FCC-hh and $d_γ\sim 2\times10^{-7}$ GeV$^{-1}$ at the muon collider. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2507_01130 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | New avenues for the neutrino dipole portal exploration at the energy frontier Vignaroli, Natascia High Energy Physics - Phenomenology High Energy Astrophysical Phenomena High Energy Physics - Experiment We present a comprehensive and gauge-invariant study of the neutrino dipole portal at the energy frontier. Assuming negligible active-sterile mixing, we analyze sterile neutrino production via dimension-6 dipole operators coupling to the electroweak field strengths. The analysis incorporates both single- and double-gauge-boson effective interactions. We investigate novel collider signatures at the HL-LHC, the FCC-hh -- studied here in this context for the first time -- and a 10 TeV muon collider. Particular emphasis is placed on electroweak boson-initiated processes, which dominate in the high-mass regime above $\sim$1 TeV. At the muon collider, these VBF-like topologies enable production even when the dipole couples to non-muonic flavors, offering a unique and sensitive probe for different flavor scenarios. We derive sensitivity projections for various theoretical benchmarks, reaching dipole couplings down to $d_γ\sim 6\times10^{-7}$ GeV$^{-1}$ at FCC-hh and $d_γ\sim 2\times10^{-7}$ GeV$^{-1}$ at the muon collider. |
| title | New avenues for the neutrino dipole portal exploration at the energy frontier |
| topic | High Energy Physics - Phenomenology High Energy Astrophysical Phenomena High Energy Physics - Experiment |
| url | https://arxiv.org/abs/2507.01130 |