The IceCube-Gen2 Collaboration -- Contributions to the 39th International Cosmic Ray Conference (ICRC2025)

TL;DR

IceCube-Gen2 is a planned advanced neutrino observatory at the South Pole, integrating optical and radio detection methods, with ongoing research on design, performance, and scientific sensitivity for high-energy neutrino and cosmic-ray detection.

Contribution

This paper presents comprehensive research and development efforts, including design, performance, and sensitivity studies for the next-generation IceCube-Gen2 detector components.

Findings

Design and status of optical, surface, and radio components

Performance improvements in cosmic-ray and neutrino event reconstruction

Sensitivity estimates for astrophysical neutrino fluxes

Abstract

IceCube-Gen2 is a planned next-generation neutrino observatory at the South Pole that builds upon the successful design of IceCube. Integrating two complementary detection technologies for neutrinos, optical and radio Cherenkov emission, in combination with a surface array for cosmic-ray air shower detection, IceCube-Gen2 will cover a broad neutrino energy range from MeV to EeV. This index of contributions to the 39th International Cosmic Ray Conference in Geneva, Switzerland (July 15-24, 2025) describes research and development efforts for IceCube-Gen2. Included are summaries of the design, status, and sensitivity of the IceCube-Gen2 optical, surface, and radio components; performance studies of next-generation surface detectors and in-ice optical sensors; advanced reconstruction techniques of cosmic-ray air showers and neutrino events; sustainability and environmental impact; and sensitivity studies of astrophysical neutrino fluxes and cosmic-ray physics. Contributions related to IceCube and the scheduled IceCube Upgrade are available in a separate collection.