29 November 2024 – In a new paper with the title ‘Search for non-standard neutrino interactions with the first six detection units of KM3NeT/ORCA‘ we search for distortions of the standard oscillation pattern of neutrinos of all flavours. These distortions may be caused by Non-Standard Interaction (NSI) in the forward scattering of neutrinos inside Earth matter.
For the study we used the first six detection units of ORCA and 433 kton-years of exposure. In a sample of 5828 events reconstructed in the 1 GeV−1 TeV energy range we did not find significant deviations from standard neutrino interactions.
The measured constraints on the parameters of the non-standard coupling are comparable with the current most stringent limits placed by other experiments.
The results constitute the first search for NSI conducted with KM3NeT.
The paper is submitted to the Journal of Cosmology and Astroparticle Physics.
A preprint is available at arXiv: 2411.19078
In the image:
90% CL constraints on the NSI-couplings inferred from this study in comparison with the results from other experiments.
