Remove gluon jets from analysis

[lawrenceleejr]

We want to ignore gluon jets in our jet-level analysis. We want to identify jets w/ a small deltaR (probably below 0.4) to an "initial" gluon.

We want to ask a jet, what is the parton (i.e. quark or gluon) that seems to have initiated this jet. If that parton is a gluon, then don't consider that jet. For finding the parton that initiated, there are a number of possibilities that @cbell1402 and @enibigir will decide on.

Possibilities:

• Use status codes to figure it out
• Use parentage information to figure it out
• Use momentum info. Maybe it's the highest momentum parton near the jet.

[cbell1402]

While selecting for partons that initiated a jet I discovered that sometimes the highest energy particles have more energy than the jet itself. This could be explained by "so-called out-of-cone losses." The below plots help explain that this is likely what is happening.

[cbell1402]

Script loop.py has been updated with gluon removal set for a delta_R < 0.4

[lawrenceleejr]

Beautiful. Let's go ahead and call this ticket closed!