Bare-nucleus astrophysical factor of theHe3(d,p)He4reaction via the 'Trojan horse' method
| Autor: | D. Schürmann, Stefan Typel, Claudio Spitaleri, S. Romano, L. Lamia, R. G. Pizzone, Silvio Cherubini, Frank Strieder, M. La Cognata, C. Rolfs, A. Musumarra, Aurora Tumino, A. Rinollo |
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| Rok vydání: | 2005 |
| Předmět: | |
| Zdroj: | Physical Review C. 72 |
| ISSN: | 1089-490X 0556-2813 |
| Popis: | The $^{3}\mathrm{He}$($d,p$)$^{4}\mathrm{He}$ reaction has been studied from ${E}_{c.m.}=600$ keV down to astrophysical energies by means of the ``Trojan horse'' method using the $^{6}\mathrm{Li}$($^{3}\mathrm{He}$,$p\ensuremath{\alpha}$)$^{4}\mathrm{He}$ three-body reaction at ${E}_{\mathrm{lab}}=5$ and 6 MeV. Coincidence spectra were measured in kinematic conditions favoring the quasifree $^{3}\mathrm{He}+^{2}\mathrm{H}$ process. The bare astrophysical factor ${S}_{b}(E)$ for the $^{3}\mathrm{He}$($d,p$)$^{4}\mathrm{He}$ reaction was extracted from the three-body cross section in the modified plane-wave Born approximation. Comparison with the ${S}_{b}$ extrapolation from the free two-body data is presented. The independent estimate of the screening potential as obtained with the present work seems to confirm the theoretical adiabatic limit. |
| Databáze: | OpenAIRE |
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