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The Compact Linear Collider is one of the two main European options for a collider in a post Large Hadron Collider era. This is a linear e+e-collider with three center-of-mass energy stages: 380 GeV, 1.5 TeV, and 3 TeV. The luminosity performance of the first stage at 380 GeV is presented including the impact of static and dynamic imperfections. These calculations are performed with fully realistic tracking simulations from the exit of the damping rings to the interaction point and including beam-beam effects in the collisions. A luminosity of 4.3×1034 cm-2 s-1 can be achieved with a perfect collider, which is almost three times the nominal luminosity target of 1.5×1034 cm-2 s-1. In simulations with static imperfections, a luminosity of 2.35×1034 cm-2 s-1 or greater is achieved by 90% of randomly misaligned colliders. Expressed as a percentage of the nominal luminosity target, this is a surplus of approximately 57%. Including the impact of ground motion, a luminosity surplus of 53% or greater can be expected for 90% of colliders. The average expected luminosity is 2.8×1034 cm-2 s-1, which is almost twice the nominal luminosity target.

Original publication




Journal article


Physical Review Accelerators and Beams

Publication Date