artifact or real?
At 4:00 in this one there is an X shape, I keep coming across these and they are oftern highly symmetrical, are they actually a matched pair of particles?
by andy.haas scientist
It's hard to say, from just one picture. I would mark it as a two-track vertex. We (scientists) can then analyze them all later and see if there is some statistically significant difference from what we expect from random background crossing (as determined in control data / simulations). Thanks!
I'll keep marking them then.