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arXiv · 1901.09825

The International Linear Collider. A European Perspective

Abstract

The International Linear Collider (ILC) being proposed in Japan is an electron-positron linear collider with an initial energy of 250 GeV. The ILC accelerator is based on the technology of superconducting radio-frequency cavities. This technology has reached a mature stage in the European XFEL project and is now widely used. The ILC will start by measuring the Higgs properties, providing high-precision and model-independent determinations of its parameters. The ILC at 250 GeV will also search for direct new physics in exotic Higgs decays and in pair-production of weakly interacting particles. The use of polarised electron and positron beams opens new capabilities and scenarios that add to the physics reach. The ILC can be upgraded to higher energy, enabling precision studies of the top quark and measurement of the top Yukawa coupling and the Higgs self-coupling. The international -- including European -- interest for the project is very strong. Europe has participated in the ILC project since its early conception and plays a major role in its present development covering most of its scientific and technological aspects: physics studies, accelerator and detectors. The potential for a wide participation of European groups and laboratories is thus high, including important opportunities for European industry. Following decades of technical development, R&D, and design optimisation, the project is ready for construction and the European particle physics community, technological centers and industry are prepared to participate in this challenging endeavour.

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Philip Bambade, Ties Behnke, Mikael Berggren, Ivanka Bozovic-Jelisavcic, Philip Burrows, Massimo Caccia, Paul Colas, Gerald Eigen, Lyn Evans, Angeles Faus-Golfe, Brian Foster, Juan Fuster, Frank Gaede, Christophe Grojean, Marek Idzik, Andrea Jeremie, Tadeusz Lesiak, Aharon Levy, Benno List, Jenny List, Joachim Mnich, Olivier Napoly, Carlo Pagani, Roman Poeschl, Francois Richard, Aidan Robson, Thomas Schoerner-Sadenius, Marcel Stanitzki, Steinar Stapnes, Maksym Titov, Marcel Vos, Nicholas Walker, Hans Weise, Marc Winter. 2019-01-28. The International Linear Collider. A European Perspective. https://arxiv.org/abs/1901.09825

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