The LundPlane FastJet contrib has been developed by

  Frederic Dreyer <frederic.dreyer@physics.ox.ac.uk>
  Keith Hamilton <keith.hamilton@ucl.ac.uk>
  Alexander Karlberg <alexander.karlberg@physics.ox.ac.uk> (*)
  Gavin P. Salam <gavin.salam@physics.ox.ac.uk> (*)
  Ludovic Scyboz <ludovic.scyboz@physics.ox.ac.uk> (*)
  Gregory Soyez <soyez@fastjet.fr> (*)
  Rob Verheyen <r.verheyen@ucl.ac.uk>

(*) current maintainers


The physics is based on:

  The Lund Jet Plane.
  Frederic A. Dreyer, Gavin P. Salam, and Gregory Soyez
  JHEP 12 (2018) 064
  https://doi.org/10.1007/JHEP12(2018)064
  arXiv:1807.04758

The definition of azimuthal angles, and examples of
all-order observables sensitive to spin correlations
(example_dpsi_collinear and example_dpsi_slice), are from:

  Spin correlations in final-state parton showers and jet observables
  A. Karlberg, G. P. Salam, L. Scyboz, and R. Verheyen
  Eur. Phys. J. C 81, 681 (2021)
  https://doi.org/10.1140/epjc/s10052-021-09378-0
  arXiv:2103.16526
  
and

  Soft spin correlations in final-state parton showers
  K. Hamilton, A. Karlberg, G. P. Salam, L. Scyboz and R. Verheyen
  JHEP 03 (2022) 193
  https://doi.org/10.1007/JHEP03(2022)193
  arXiv:2111.01161