Circular and Linear ${\mathrm{e}}^{+}{\mathrm{e}}^{-}$ Colliders: Another Story of Complementarity

Abstract

The remarkable synergy and complementarity between the circular ${\mathrm{e}}^{+}{\mathrm{e}}^{-}$ and pp colliders has been extensively discussed. In this short document, we investigate the complementarity between the proposed circular and linear ${\mathrm{e}}^{+}{\mathrm{e}}^{-}$ colliders at the electroweak and TeV scale. This complementarity could be exploited on a world-wide scale, if both a large circular and a linear infrastructures were available. A possible implementation of such a complementary program is shown.

Comments: Contribution to the European Strategy for Particle Physics Update, 2018--2020. 22 pages, 11 figures