Investigate crazy high value events about factorytools

[rsmith54]

running

python run_tls.py --doOverwrite --nevents 10000 --inputDS mc15_13TeV.361414.Sherpa_CT10_Zmumu_Pt1000_2000_CVetoBVeto.merge.DAOD_SUSY1.e4133_s2608_s2183_r6869_r6282_p2419

let's me reproduce this with manageable sample. It seems to happen in a small fraction of events. I'm hoping (maybe against hope) that this is something with the very large values / floats/ doubles but we'll see....

[rsmith54]

This happens when there is 1 Jet in the Jets container (and 1 or 2 Leptons). Investigating further.

[lawrenceleejr]

As @rsmith54 found out, this appears to be negative mass leptons in our xAOD::Particle objects. They are fine in the original containers. Something is screwy with the ::p4() and ::setp4() functions somewhere....

[rsmith54]

Finally fixed with #93. We have moved to using a nicer IParticleContainer setup as well which is safer and faster than the previous particle copying.