Here, we have a highly gifted researcher
in the field of PARTICLE physics...
The Big Bang Theory Season 3, Episode 15
All right, so
this PARTICLE here
The Big Bang Theory Season 5, Episode 21
inventing a new
dark matter PARTICLE
The Big Bang Theory Season 11, Episode 13
to isolate the Higgs
boson PARTICLE.
The Big Bang Theory Season 5, Episode 4
...of a subatomic PARTICLE
called the Higgs boson.
The Big Bang Theory Season 6, Episode 3