Prospectives for A Fixed-Target ExpeRiment at the LHC: AFTER@LHC
  We argue that the concept of a multi-purpose fixed-target experiment with the proton or lead-ion LHC beams extracted by a bent crystal would offer a number of ground-breaking precision-physics opportunities. The multi-TeV LHC beams will allow for the most energetic fixed-target experiments ever performed. The fixed-target mode has the advantage of allowing for high luminosities, spin measurements with a polarised target, and access over the full backward rapidity domain --uncharted until now-- up to x_F ~ -1. 
J. P. Lansberg, V. Chambert, J. P. Didelez, B. Genolini, C.   Hadjidakis, C. Lorce, P. Rosier, M. Anselmino, R. Arnaldi, E. ...
hep-ex hep-ph nucl-ex nucl-th