Re: Strange object, lack of feedback
by Whoandwhatitis moderator
What I see is two muons (green lines) along with two other charged particles coming from the same off-center vertex. I think that this suggests that a massive particle decayed and produced four or more highly-energetic charged particles.
Could be a photon that hit the electromagnetic calorimeter at 300°, along with some hadrons and possibly some minor punch-throughs (seen on the muon chamber detector).
It also looks like the two red lines at 300° were cut short in the Normal / Zoom views, but they come from near the center in the Slice view.