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3 alpha process

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3 alpha process has definition A nuclear reaction (3 ⁴He → ¹²C + γ + 7 MeV) by which helium is transformed into carbon. The process is dominant in red giants. At a temperature of about 2 × 10⁸ K and a density of 10⁵ g cm^-3, after core hydrogen is exhausted, three α-particles can fuse to form an excited nucleus of carbon 12, which occasionally decays into a stable carbon 12 nucleus. The overall process can be looked upon as an equilibrium between three helium nuclei and the excited ¹²C^*, with occasional irreversible leakage out of the equilibrium into the ground state of carbon 12. Further capture of α-particles by carbon 12 nuclei produces oxygen 16 and neon 20. (also called the triple-α process) has source: Hopkins, J. 1976 Glossary of Astronomy and Astrophysics, University of Chicago Press, 2001-09-27 09:29:40.0
is a kind of nucleosynthetic reaction

physical process has domain physics 2001-09-27 09:29:38.0

3 alpha process	has definition A nuclear reaction (3 ⁴He → ¹²C + γ + 7 MeV) by which helium is transformed into carbon. The process is dominant in red giants. At a temperature of about 2 × 10⁸ K and a density of 10⁵ g cm^-3, after core hydrogen is exhausted, three α-particles can fuse to form an excited nucleus of carbon 12, which occasionally decays into a stable carbon 12 nucleus. The overall process can be looked upon as an equilibrium between three helium nuclei and the excited ¹²C^, with occasional irreversible leakage out of the equilibrium into the ground state of carbon 12. Further capture of α-particles by carbon 12* nuclei produces oxygen 16 and neon 20. (also called the triple-α process)
3 alpha process	is a kind of nucleosynthetic reaction
physical process	has domain physics