[Rivet] Rivet 2.4 and xsec/event counter information

[Andy Buckley]

On 09/11/15 11:20, Leif Lönnblad wrote:
> On 2015-11-09 10:44, David Grellscheid wrote:
>> That's a neat idea! I assume you would do this just at the level of the
>> HepMC converter?
>
> Yes. It would have to be mentioned in the specs for HepMC3 that the
> event number should be interpreted as the number of events generated so
> far, and that zero-weight events may be left out.

Which would require a lot of care in usage like ATLAS' generator 
filters, where events in the HepMC are discarded before writing to disk 
based on kinematic (etc.) selections... compatibility with that needs to 
be considered, at least.

Andy

-- 
Dr Andy Buckley, Lecturer / Royal Society University Research Fellow
Particle Physics Expt Group, University of Glasgow