add bornzerodampcut parameter for Powheg ttbb process
As realized in the course of analysing samples from https://its.cern.ch/jira/browse/ATLMCPROD-9485 we need anothe steering parameter called bornzerodampcut for the Powheg ttbb process.
As realized in the course of analysing samples from https://its.cern.ch/jira/browse/ATLMCPROD-9485 we need anothe steering parameter called bornzerodampcut for the Powheg ttbb process.