The .sup.12./sup.C+.sup.16./sup.O fusion reaction in carbon burning: Study at energies of astrophysical interest using the Trojan Horse Method

0572942 - ÚJF 2024 RIV IT eng C - Konferenční příspěvek (zahraniční konf.)
Oliva, A. A. - Tumino, A. - Soic, N. - Prajapati, M. P. - Kilic, Ali Ihsan … celkem 45 autorů
The ¹²C+¹⁶O fusion reaction in carbon burning: Study at energies of astrophysical interest using the Trojan Horse Method.
EPJ Web of Conferences. Vol. 275. Catania: edp sciences, 2023, č. článku 02010. ISSN 2100-014X.
[European Summer School on Experimental Nuclear Astrophysics /11./. Catania (IT), 12.06.2022-19.06.2022]
Výzkumná infrastruktura: SPIRAL2-CZ III - 90271
Institucionální podpora: RVO:61389005
Klíčová slova: nuclear reactions * THM
Obor OECD: Astronomy (including astrophysics,space science)
https://doi.org/10.1051/epjconf/202327502010

The carbon-burning process in massive stars mainly occurs via the 12C +12 C. However, at temperatures higher than 109K and considering the increased abundance of 16O produced during the later stages of the heliumburning,the 12C+16O fusion can also become relevant. Moreover, 12C+16O also plays a role in the scenario of explosive carbon burning. Thus, the astrophysical energy region of interest ranges from 3 to 7.2 MeV in the center-of-mass frame. However, the various measurements of the cross-section available in the literature stop around 4 MeV, making extrapolation necessary. To solve this uncertainty and corroborate direct measurement we applied the Trojan Horse Method to three-body processes 16O(14N, α24Mg)2H and 16O(14N, p27Al)2H to study the 12C(16O, α)24Mg and 12C(16O, p)27Al reactions in their entire energy region of astrophysical interest. In this contribution, after briefly describing the method used, the experiment and the preliminary phases of the data analysis will be presented and discussed.
Trvalý link: https://hdl.handle.net/11104/0343469