Münster 2017 – wissenschaftliches Programm

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HK: Fachverband Physik der Hadronen und Kerne

HK 5: Nuclear Astrophysics I

HK 5.6: Vortrag

Montag, 27. März 2017, 18:15–18:30, F 33

Constraining the rp-process by measuring ²³Al(d,n)²⁴Si with GRETINA and LENDA at NSCL — •Clemens Wolf¹, Christoph Langer¹, Fernando Montes², and Jorge Pereira² for the e15226 collaboration — ¹Goethe University Frankfurt — ²NSCL

The ²³Al(p,γ)²⁴Si stellar reaction rate has a significant effect on the light-curve emitted in X-Ray bursts. The reaction rate is mainly determined by the properties of the direct capture as well as low-lying 2⁺ states and a possible 4⁺ state. Up to now the properties of these states have not been determined precisely enough. Our new approach was to study the surrogate reaction ²³Al(d,n) at 47 AMeV at NSCL. We used the GRETINA array to detect the γ-rays following the de-excitation of the reaction products in conjunction with the LENDA array to detect the recoiling neutrons and the S800. These information will be used to determine the urgently needed properties of the ²⁴Si.
This work benefited from support by the National Science Foundation under Grant No. PHY-1430152 (JINA Center for the Evolution of the Elements). The research leading to these results has received funding from the European Research Council under the European Unions’s Seventh Framework Programme (FP/2007-2013) / ERC Grant Agreement n. 615126.