16 research outputs found
Studies for a Photon Collider at the ILC
One option at the International Linear Collider is to convert the electron
beams into high energy photon beams by Compton scattering a few millimetres in
front of the interaction region. Selected physics channels for this option have
been analysed and technical issues have been studied. So far no showstoppers
for this option have been found.Comment: V2: Minor changes, accepted by NI
Studies on Chargino production and decay at a photon collider
A Monte-Carlo analysis on production and decay of supersymmetric charginos at a future photon-collider is presented. A photon collider offers the possibility of a direct branching-ratio measurement. In this study, the process γγ → ˜χ + 1 ˜χ − 1 → W + W − ˜χ 0 1 ˜χ0 1 → q¯qq¯q˜χ0 1 ˜χ0 1 has been considered for a specific mSUGRA scenario. Various backgrounds and a parameterised detector simulation have been included. Depending on the centre-of-mass energy, a statistical error for the directly measurable branching ratio BR(˜χ ± 1 → ˜χ0 1 W ± ) of up to 3.5% can be reached.