Dashed red turned into particles?
It looks like the dashed red line suddenly decided to manifest into two particles, that then got "recreated backwards". Interesting picture, would be nice to hear a scientist's comment 😃
I'm no scientist but: that could be a) a neutral particle travelling with some neutrino(s) that decays to charged particles (allowing the detector to see them) or b) a neutrino managing (how? I don't know, ask a physicist!) to interact with the detector and produce some charged particles: vertices in the panels of the pixel detector aren't exactly uncommon, sometimes impressive particle showers result from one thing happening to hit a silicon atom in the detector 😃
by ElisabethB moderator
Quote from the FAQ :
The dashed line represents the direction of imbalance of momentum when all the detected particles are combined, and is not a particle track in itself.
So I don't think it can decay into anything as it is not real. I'll leave it to the scientists to explain this ! 😄