What is the second step of the hydrogen fusion process?

The first step of the Hydrogen fusion process: a nucleus of Deuterium (2H) is formed from two protons with the emission of an antielectron and a neutrino.

University of Oregon

The basic Hydrogen fusion cycle involves four Hydrogen nuclei (protons) and two electrons and yields a Helium nucleus, two neutrinos and six photons. This process occurs in three steps: the first one is the Fusion of Hydrogen into Deuterium. Here two protons collide, one proton turns into a neutron emitting an antielectron and a neutrino.

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