Measurement of the neutrino cross section across the TeV scale using IceCube data
Rasmi Hajjar, Mauricio Bustamante, Sergio Palomares-Ruiz · arXiv: 2610.24068v1 · Summary page
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Measuring neutrino interactions across the TeV scale
A separate IceCube analysis uses eight years of through-going muon-neutrino data to measure charged-current neutrino–nucleon interactions across 150 GeV-40 TeV. These interaction probabilities are difficult to measure because neutrinos so rarely collide with matter. The reported cross sections agree with Standard Model predictions, with uncertainties below 20% throughout the explored range.
The result connects accelerator-based measurements with observations at higher energies, providing a more continuous experimental picture of how neutrinos interact. Such measurements also probe the nucleon's internal structure and can test for departures from established physics. The analysis reports mild indications that neutrino and antineutrino cross sections can be measured separately above 1 TeV, but that separation is not yet a firm result.
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