[Rivet] Sherpa+Rivet: m_io->fill_next_event fails

[Eike von Seggern]

On Wed, Dec 09, 2009 at 19:47 +0000, Hendrik Hoeth wrote:
> Thus spake Eike von Seggern (jan.eike.von.seggern at physik.hu-berlin.de):
> 
> > Okay, it's not a Rivet problem and it's not a problem with asymmetric
> > beams either. I've attached a tool that just reads in HepMC and prints
> > out the event numbers.
> 
> Can you put a couple of events (100 or so) as HepMC file on hepforge,
> please? Or check if there are events with cross-section error = nan?

Yepp, there's a cross-section line with a nan. The file is:
login.hepforge.org:~eike/babar.data/fails.hepmc2g

Any suggestion why the error is nan or how I can prevent this?

eike