
...of a subatomic PARTICLE
called the Higgs boson.
The Big Bang Theory Season 6, Episode 3

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

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

Here, we have a highly gifted researcher
in the field of PARTICLE physics...
The Big Bang Theory Season 3, Episode 15

to isolate the Higgs
boson PARTICLE.
The Big Bang Theory Season 5, Episode 4