Determination of Top-quark Asymmetries at the ILC
  A study of top quark production at the future International Linear Collider, ILC, with a centre-of-mass energy of 500 GeV is presented. The emphasis is put on determining the sensitivity to physics beyond the Standard Model. The analysis has been carried out with a full simulation of the ILD detector. Both, the forward-backward asymmetry and the left-right asymmetry can be determined to a precision of about 1% to 1.5%. The analysis points out an ambiguity which arises in case of the production of top-quarks with left-handed helicity. 
Philippe Doublet, Fran\c{c}ois Richard, Roman P\"oschl, Thibault   Frisson, J\'er\'emy Rou\"en\'e
hep-ex hep-ph