...of a subatomic PARTICLE
called the Higgs boson.
The Big Bang Theory Season 6, Episode 3
"Higgs boson PARTICLE."
How could you not get that?
The Big Bang Theory Season 3, Episode 13
A sigma PARTICLE.
The Big Bang Theory Season 1, Episode 13
You'd be surprised how many
PARTICLE physicists have a whimsical side.
The Big Bang Theory Season 2, Episode 13
All right, so
this PARTICLE here
The Big Bang Theory Season 5, Episode 21