CHIPP Community Roadmap 2024. Update of Swiss Particle Physics Community Needs for Research Infrastructures 2029-2032 and beyond

This document is an update to the ‘CHIPP Roadmap for Research and Infrastructure 2025-2028 and beyond’ that was published in 2021. It presents the needs of the Swiss particle and astroparticle physics community in terms of future national and international research infrastructures. The content of the previous roadmap can serve as a reference and provides detailed context for the updates within this document. Together with similar community roadmaps in other disciplines, it is an element of the four-year process leading to the development of the Swiss Roadmap for Research Infrastructures 2027 to be written by the State Secretariat for Education, Research and Innovation (SERI) in view of the ERI Dispatch 2029–2032 to Federal Council. The role of these ‘bottom-up’ inputs is to serve as an important basis for the strategic planning of the higher education institutions on new or major upgrades to national infrastructures and to inform and support SERI during its decision-making process on Swiss participation in international research infrastructure networks and organisations.