The P$^3$ Experiment: A Positron Source Demonstrator for Future Lepton Colliders

• DOI: 10.48550/arxiv.2308.16803
• Publication Date: 2023-01-01
• Authors: Vallis, Nicolas; Craievich, Paolo; Schär, Mattia; Zennaro, Riccardo; Auchmann, Bernard; Braun, Hans-Heinrich; Besana, Maria Ilaria; Duda, Michal; Fortunati, Reto; Rodrigues, Henriq...; Hauenstein, Domin...; Rasmus, Rasmus Is...; Juranić, Pavle; Kosse, Jaap; Marcellini, Fabio; Michlmayr, Thomas...; Müller, Stefan; Pedrozzi, Marco; Rotundo, Renzo; Orlandi, Gian Luca; Seidel, Mike; Strohmaier, Nick ...; Zykova, Mariia
• Keywords: Accelerator Physics (physics.acc-ph); High Energy Physics - Experiment (hep-ex); FOS: Physical sciences; Physics - Accelerator Physics; 7. Clean energy; High Energy Physics - Experiment

The PSI Positron Production (P$^3$ or P-cubed) experiment is a demonstrator for a e+ source and capture system with potential to improve the state-of-the-art e+ yield by an order of magnitude. The experiment is driven by the FCC-ee injector study and will be hosted in the SwissFEL facility at the Paul Scherrer Institute in Switzerland. This paper is an overview of the P$^3$ design at an advanced stage, with a particular emphasis on a novel e+ capture system and its associated beam dynamics. Additionally, a concept for the experiment diagnostics is presented, as well as the key points of the ongoing installation works.