1. The $$^{27}\hbox {Al}(\hbox {p},\alpha )^{24}\hbox {Mg}$$ reaction at astrophysical energies studied by means of the Trojan Horse Method applied to the $$^2\hbox {H}(^{27}\hbox {Al},\alpha ^{24}\hbox {Mg})\hbox {n}$$ reaction
- Author
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G. Manicò, M. L. Sergi, E. Chávez, R. Alba, J. Mrazek, G. D’Agata, A. Cvetinović, S. Hayakawa, Fairouz Hammache, G. G. Kiss, T. Parascandolo, Luis Acosta, K. Gaitán De Los Rios, Domenico Santonocito, Roberta Spartà, Catalin Matei, Silvio Cherubini, G. G. Rapisarda, Sara Palmerini, Livio Lamia, A. Tumino, T. Petruse, D. Pierroutsakou, M. Mazzocco, R. G. Pizzone, V. Burjan, M. La Commara, N. de Séréville, M. La Cognata, Zsolt Fülöp, Marisa Gulino, P. Figuera, G. L. Guardo, H. Yamaguchi, A. Di Pietro, S. Romano, and C. Maiolino
- Subjects
Physics ,Reaction rate ,Potential impact ,Hydrogen ,chemistry ,Analytical chemistry ,General Physics and Astronomy ,chemistry.chemical_element ,Nuclear fusion ,Production (computer science) ,Energy (signal processing) - Abstract
The $$^{27}\hbox {Al}(\hbox {p},\alpha )^{24}\hbox {Mg}$$ 27 Al ( p , α ) 24 Mg reaction, which drives the destruction of $$^{27}$$ 27 Al and the production of $$^{24}\hbox {Mg}$$ 24 Mg in stellar hydrogen burning, has been investigated via the Trojan Horse Method (THM), by measuring the $$^2\hbox {H}(^{27}\hbox {Al},\alpha ^{24}\hbox {Mg})\hbox {n}$$ 2 H ( 27 Al , α 24 Mg ) n three-body reaction. The experiment covered a broad energy range ($$E_\mathrm{c.m.}\le \,1.5\,\hbox {MeV}$$ E c . m . ≤ 1.5 MeV ), aiming to investigate those of interest for astrophysics. The results confirm the THM as a valuable technique for the experimental study of fusion reactions at very low energies and suggest the presence of a rich pattern of resonances in the energy region close to the Gamow window of stellar hydrogen burning (70–120 keV), with potential impact on astrophysics. To estimate such an impact a second run of the experiment is needed, since the background due the three-body reaction hampered to collect enough data to resolve the resonant structures and extract the reaction rate.
- Published
- 2021
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