A High Energy High-Luminosity Electron-Positron Collider using Energy Recovery Linacs, Thomas Roser (BNL)

Tuesday 26 Nov 2019, 15:30 → 16:30 US/Eastern

Abstract:

I will present an alternative approach for a high-energy high-luminosity electron-positron collider. Present designs for high-energy electron-positron colliders are either based on two storage rings with 100 km circumference with a maximum CM energy of 365 GeV or two large linear accelerators with a high energy reach but lower luminosity, especially at the lower initial CM energies. A collider based on storage rings has a high electric power consumption required to compensate for the beam energy losses from the 100 MW of synchrotron radiation power. Using an Energy Recovery Linac (ERL) located in the same-size 100 km tunnel would greatly reduce the beam energy losses while providing higher luminosity in this high-energy collider. Furthermore, this approach could allow for colliding fully polarized electron and positron beams and for extending the CM energy to 600 GeV, which would enable double-Higgs production and the production and measurements of the top Yukawa coupling.

2019 11 26 ERL electron positron collider.pdf

2019 11 26 ERL electron positron collider small.pptx

Video of the colloquium