pair creation vs pair formation

pair creation and pair formation both are nouns.

Word	Noun	Adjective	Verb	Adverb
pair creation	Yes	No	No	No
pair formation	Yes	No	No	No

As nouns, pair creation and pair formation are synonyms defined as:

pair creation and pair formation: the transformation of a gamma-ray photon into an electron and a positron when the photon passes close to an atomic nucleus

Other synonyms of pair creation include pair production.

pair creation (noun)	pair formation (noun)
the transformation of a gamma-ray photon into an electron and a positron when the photon passes close to an atomic nucleus	the transformation of a gamma-ray photon into an electron and a positron when the photon passes close to an atomic nucleus