[MuonGun] Exclude stochastic losses outside active volume in Track::GetEnery()

[Jakob van Santen]

MuonGun::Track assumes that all daughters attached to a muon in I3MCTree are stochastic losses in the active volume, and uses the the difference between the sum of daughter energies and I3MMCTrack::GetElost?() as an estimate of the continuous loss rate. PROPOSAL now seems to attach muon decay products to I3MCTree even if they are outside the volume. In the attached example from jsoedingrekso, an up-going muon decays in low Earth orbit at 180 TeV. This makes the estimated continuous loss rate negative, and MuonGun::Track() claims that the muon _gains_ energy as it propagates.

This could be fixed by only including stochastic losses between Ti and Tf.

[Jakob van Santen]

muon perpetual motion machine

[Alex Olivas]

It's time to start thinking about the next milestone. Going to try something new, since waiting until the code sprints to attack tickets hasn't provided the results we were hoping for.

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[Alex Olivas]

To the owner of this ticket. Signal you're aware if this ticket, by 'accept'ing it.

[Alex Olivas]

These are all moving to smartsheets 'projects'