Study of Differential Luminosity Spectrum Reconstruction using Bhabha Event at 350 GeV

For future linear colliders, it is essential to have a good knowledge at the differential luminosity spectrum for many center of mass energy related measurements. Following the methods developed previously for the reconstruction of the basic luminosity spectrum using Bhabha events, the framework is tested the case of 350 GeV. Starting from simulation between colliding beams, a simulated luminosity spectrum was generated and fitted with the model constructed. The model, with reconstruction method using Bhabha events is working well in the case of 350 GeV. The effective Bhabha cross section is calculated, and the detector resolution is estimated.