Ponente
Descripción
An accurate atmospheric neutrino flux is crucial for a multitude of physics studies with modern neutrino telescopes; as a signal for neutrino oscillation measurements, and as a background for searches of astrophysical neutrino sources. We seek to advance in the low-energy neutrino flux calculations (up to a few GeV) using the MCEq (Matrix Cascade Equations) code that numerically solves the one-dimensional cascade equations. For precision calculations at energies below a few GeV, which are well within reach of the IceCube Upgrade and KM3NeT-ORCA, the lateral component of hadronic cascades becomes important, requiring three-dimensional calculation schemes. We present a new study on the two-dimensional development of air showers within the MCEq framework as a necessary initial step towards a full 3D calculation. Since the uncertainties of the flux calculations are limited by the physics models, in particular the currently available hadronic interaction models, we will discuss the prospects of moving forward using data-driven models and calibration techniques.
