Comments and questions during discussions
Comment from James: Two interaction poitns are crucial for the physics and detector community!
Q Eirik: Can you track (in the detector) a very asymmetric beam? Tracking is already difficult with a narrow cone.
Q Heidi: If the positron problem is solved (in plasma), would you still do an asymmetric collider?
A: Yes, the technology for electrons and positrons would anyway likely be different.
Q Ole: Could one use a circular machine for e+?
A: No, the time structure of a circular machine would be too different from the plasma linac.
Q James: What would be the time scale for building/operating this
A: 10-20 years?
Q Ionut: Are the optima sharp?
A: Not very sharp, and there is also uncertainity due to e.g. klystron pricing.
Comment Farid: Asymmetry might be good for analysis - e.g. secondary vertexes for tracking are "stretched out"
Comment Alex: Going straight to the highest energies would be very challenging
A: Indeed, want to work our way up
C Steinar to "FCC Accelerator oportunities": FCC injectors is something we could consider contributing to. Curently driven by PSI, who already has the expertise