New measurement of the d(d,p)t reaction at astrophysical energies via the Trojan-horse method

Abstract

The study of d(d,p)t reaction is very important for the nucleosynthesis in both standard Big Bang and stellar evolution, as well as for the future fusion reactors planning of energy production. The d(d,p)t bare nucleus astrophysical S(E) factor has been measured indirectly at energies from about 400 keV down to several keV by means of the Trojan horse method applied to the quasi-free process ${}^2\mathrm{H}({}^6\mathrm{Li},\mathrm{pt}){}^4\mathrm{He}$ induced at a lithium beam energy of 9.5 MeV, which is closer to the zero quasi-free energy point. An accurate analysis leads to the determination of the ${\mathrm{S}}_{\mathrm{bare}}(0)=56.7\pm 2.0keV\cdot \mathrm{b}$ and of the corresponding electron screening potential ${\mathrm{U}}_{\mathrm{e}}=13.2\pm 4.3eV$. In addition, this work gives an updated test for the Trojan horse nucleus invariance comparing with previous indirect investigations using ${}^3\mathrm{He}=(\mathrm{d}+\mathrm{p})$ breakup.

6 pages, 7 figures

References in corpus (3)

• Big Bang nucleosynthesis revisited via Trojan Horse Method measurements
• Updated evidences of the Trojan Horse particle invariance for ${}^2$H(d,p)${}^3$H reaction
• Experimental spectra analysis in THM with the help of simulation based on Geant4 framework

Cited by in corpus (6)

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• Theoretical study of the d(d,p)3H and d(d,n)3He processes at low energies
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• Indirect Measurement of the ${\mathrm{S}}^{\ast }(\mathrm{E})$ Factor for ${}^{12}\mathrm{C}({}^{12}\mathrm{C},p){}^{23}\mathrm{Na}$ at Gamow Energies via the Trojan Horse Method with Near-0 degree Spectator Detection
• Multi-Model Analysis of the Astrophysical $S(E)$ Factor for the ${}^9\mathrm{Be}(p,\alpha {)}^6\mathrm{Li}$ Reaction and Its Impact on Astrophysical Reaction Rates