Here, we have a highly gifted researcher
in the field of PARTICLE physics...
The Big Bang Theory Season 3, Episode 15
inventing a new
dark matter PARTICLE
The Big Bang Theory Season 11, Episode 13
each vibration is
a different PARTICLE.
The Big Bang Theory Season 11, Episode 13
to isolate the Higgs
boson PARTICLE.
The Big Bang Theory Season 5, Episode 4
"Higgs boson PARTICLE."
How could you not get that?
The Big Bang Theory Season 3, Episode 13