Beam energy measurement at LEP2 using Møller scattering

Precision Beam Parameter Monitoring in a Measurement of the Weak Mixing Angle in Møller Scattering

Fixed Target Møller Scattering at the NLC

I discuss the measurement of the parity violating left-right asymmetry in the scattering of high energy polarized electrons from the atomic electrons in a liquid hydrogen target. The asymmetry, due to the interference between the weak and electromagnetic amplitudes, measures the product of the vector and axialvector couplings of the electron to the Z boson, and is thus proportional to 1 4 sin W...

Beam Energy Measurement at Linear Colliders Using Spin Precession

Linear collider designs foresee some bends of about 5-10 mrad. The spin precession angle of one TeV electrons on 10 mrad bend is 23.2 rad and it changes proportional to the energy. Measurement of the spin direction using Compton scattering of laser light on electrons before and after the bend allows determining the beam energy with an accuracy about of 10. In this paper the principle of the met...

Møller Scattering Polarimetry for High Energy e+e− Linear Colliders

The general features of the Møller scattering and its use as an electron polarimeter are described and studied in view of the planned future high energy ee linear colliders. In particular the study concentrates on the TESLA collider which may operate with longitudinal polarised beams at a centre of mass energy of the order of 0.5 TeV with a luminosity of about L = 10 cmsec.

Polarized Møller Scattering Asymmetries ∗