Merge branch 'phn_gg2gammagamma_superchic2' into 'master'
added cep g+g -> gamma+gamma
See merge request !2125 (merged)
(cherry picked from commit 6db42b9c)
82d9d157 added cep g+g -> gamma+gamma c7d5afda adding cpu time 10 mins
Co-authored-by: Fernando Jesus Abudinen Gallego fernando.abudinen@cern.ch