1. Higgs boson

2.[ Nucleon] gluon (a theoretically hypothesized massless particle)

Correct answer: Higgs boson

God particle (the "standard model" of particle physics) generally refers to the Higgs boson.

The Higgs boson particle physics standard model predicts that the boson with zero spin has no charge and color charge, is extremely unstable, and will decay immediately after it is produced. 1964, British scientist peter higgs proposed the existence of Higgs field and further predicted the existence of Higgs boson.