Speaker
Jenny List
(Deutsches Elektronen-Synchrotron (DE))
Description
We investigate the prospects for detecting and measuring the parameters of WIMP
dark matter in a model-independent way at the International Linear Collider.
The signal under study is direct WIMP pair production with associated initial
state radiation e+e− -> chi chi gamma. The analysis accounts for the beam
energy spectrum of the ILC and the dominant machine-induced backgrounds. The
influence of the detector parameters are incorporated by full simulation and
event reconstruction within the framework of the ILD detector concept. We show
that, by using polarised beams, the detection potential is significantly
increased by the reduction of the dominant SM background of radiative neutrino
production e+e− -> nu nu gamma. The dominant sources of systematic uncertainty
are the precision of the polarisation measurement and the shape of the beam
energy spectrum. With an integrated luminosity of 500 fb-1 the helicity
structure of the interaction involved can be inferred, and the masses and cross
sections can be measured with a relative accuracy on the order of 1%.
Primary author
Jenny List
(Deutsches Elektronen-Synchrotron (DE))
