
of the Higgs boson PARTICLE,
and you said,
The Big Bang Theory Season 5, Episode 21

Penny has no interest
in subatomic PARTICLE research.
The Big Bang Theory Season 3, Episode 15

Senior theoretical PARTICLE physicist
at CaITech, focusing on M Theory.
The Big Bang Theory Season 3, Episode 14

All right, so
this PARTICLE here
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