Jet energy scale setting with "photon+Jet" events at LHC energies.   Generalities, selection rules
  "photon+Jet" events, based on the q~q-> g+photon and qg-> q+photon subprocesses, are proposed for jet energy scale setting and hadron calorimeter calibration at LHC energies. General features and selection criteria of "photon+Jet" events that would provide a good photon Pt - jet Pt balance are described. CMS detector geometry is taken as the basement. 
D.V. Bandourin, V.F. Konoplianikov, N.B. Skachkov