Research and Development of ${\rm Nb}_{3}{\rm Sn}$ Wires and Cables for High-Field Accelerator Magnets

The latest strategic plans for high energy physics endorse steadfast superconducting magnet technology R&D for future energy frontier facilities. This includes 10 to 16 T Nb
₃
Sn accelerator magnets for the luminosity upgrades of the Large Hadron Collider and eventually for a future 100 TeV-scale proton-proton (pp) collider. This paper describes the multi-decade R&D investment in the Nb
₃
Sn superconductor technology, which was crucial to produce the first reproducible 10 to 12 T accelerator-quality dipoles and quadrupoles, as well as their scale-up. We also indicate prospective research areas in superconducting Nb
₃
Sn wires and cables to achieve the next goals for superconducting accelerator magnets. Emphasis is on increasing performance and decreasing costs while pushing the Nb
₃
Sn technology to its limits for future pp colliders.