Use barcode constants from HepMC:: namespace
Use barcode constants from HepMC:: namespace for the consistency.
See also https://its.cern.ch/jira/browse/ATLASSIM-6562.
Tag @jchapman
Use barcode constants from HepMC:: namespace for the consistency.
See also https://its.cern.ch/jira/browse/ATLASSIM-6562.
Tag @jchapman