Impact of high Q on ILC250 upgrade for record luminosities and path toward ILC380

H. Padamsee, A. Grassellino, S. Belomestnykh +1

In this paper, we address the possibility of upgrading the ILC250 luminosity to $8.1\times 10^{34}$, so that with the polarization feature, the effective luminosity will be $2.0 \…