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An afterburner is a specialised event generator that doesn't generate the hard process itself, but only specific parts of the event after the hard process is generated. Afterburners typically generate decays and final-state radiation.

Examples of afterburners are PHOTOS[1] for final-state electromagnetic radiation, TAUOLA[2] for tau lepton decays, and EvtGen[3] for B hadron decays.


  1. Elisabetta Barberio, Bob van Eijk, Zbigniew Wa̧s: PHOTOS: A Universal Monte Carlo for QED radiative corrections in decays, Comput.Phys.Commun. 66 (1991) 115-128, (inSPIRE:299639)
  2. S. Jadach, Z. Wa̧s, R. Decker, Johann H. Kühn: The tau decay library TAUOLA: Version 2.4 , Comput. Phys. Commun. 76 (1993) 361-380, (inSPIRE:354687)
  3. D. J. Lange: The EvtGen particle decay simulation package, Nucl. Instrum. Meth. A462 (2001) 152-155, (inSPIRE:560129)