The SoftDrop FastJet contrib was written and is maintained and
developed by

  Andrew Larkoski  
  Simone Marzani
  Gregory Soyez
  Jesse Thaler

See <link to arXiv to be inserted> for all the details about the
physics.

Please contact
  larkoski@mit.edu, simone.marzani@durham.ac.uk, soyez@fastjet.fr,
  jthaler@jthaler.net
for questions and comments.