The EnergyCorrelator FastJet contrib was written and is maintained and developed by: Andrew Larkoski Lina Necib Gavin Salam Jesse Thaler For physics details, see: Energy Correlation Functions for Jet Substructure. Andrew J. Larkoski, Gavin P. Salam, and Jesse Thaler. JHEP 1306, 108 (2013) arXiv:1305.0007. Power Counting to Better Jet Observables. Andrew J. Larkoski, Ian Moult, and Duff Neill. JHEP 1412, 009 (2014) arXiv:1409.6298. New Angles on Energy Correlation Functions. Ian Moult, Lina Necib, and Jesse Thaler. arXiv:1609.07483. ----------------------------------------------------------------------