A sigma PARTICLE.
The Big Bang Theory Season 1, Episode 13
All right, so
this PARTICLE here
The Big Bang Theory Season 5, Episode 21
of the Higgs boson PARTICLE,
and you said,
The Big Bang Theory Season 5, Episode 21
You'd be surprised how many
PARTICLE physicists have a whimsical side.
The Big Bang Theory Season 2, Episode 13
Here, we have a highly gifted researcher
in the field of PARTICLE physics...
The Big Bang Theory Season 3, Episode 15