[g13] theta-phi distributions

[slava at jlab.org]

> Is this g13b data?

yes

> What run numbers?

54325 - 54498

> What is your event topology?
> Is this within a specific reaction, or are you requiring some minimum
> number of detected tracks?

Do not care to all. Individual particles identified.

Actually, for 2 exclusive events that I tried plotting, this "skewness" is
not present. Thus, only seen in individual particle distributions so far

> Does this show up at all in any other
> sectors?

I can responsibly speak only of these 2.

Slava