I assume the name is a play on Maxwell's Demon in that its proposal was a fly in the ointment for a prevailing idea in its field of study. This article is quit

I assume the name is a play on Maxwell's Demon in that its proposal was a fly in the ointment for a prevailing idea in its field of study. This article is quite a bit better at explaining things IMO: https://www.space.com/bizarre-demon-particle-found-inside-superconductor-could-help-unlock-a-holy-grail-of-physics https://www.space.com/bizarre-demon-particle-found-inside-su...