Tetiana Kozynets, a postdoctoral researcher at the University of Liverpool, was awarded a 2025 Global Neutrino Network (GNN) Dissertation Prize. This year, Kozynets was one of three postdoctoral candidates who were awarded the prize. The winners were announced at the 2026 GNN meeting last week in Amsterdam.
The GNN dissertation prize recognizes young postdoctoral candidates who have written an outstanding thesis and made significant contributions to neutrino astronomy. Primary criteria of the selection are the scientific quality, the didactics, and the form of the thesis.
“I was delighted to find out that I had received the GNN prize this year,” says Kozynets. “My PhD research was a mix of experiment and theory, first-principles modeling and statistical analysis, neutrino mixing phenomenology and the depths of Monte Carlo simulation. Putting it all together into a single document was a challenge in its own right.”
Kozynets conducted her PhD work at the University of Copenhagen under Professor Jason Koskinen. Her thesis, “Atmospheric neutrino oscillations in IceCube-DeepCore within and beyond the unitary framework,” investigated the systematic uncertainties in DeepCore and simulated atmospheric neutrino oscillations with the IceCube Upgrade. Kozynets was recognized for her key contributions when she was awarded an IceCube Impact Award in 2023.
“I want to thank Jason Koskinen, Tom Stuttard, and Philipp Eller for being such incredible mentors and scientists to work with and learn from, as well as the IceCube Collaboration for providing such a fantastic particle physics instrument and a platform for a young researcher to grow,” says Kozynets.