Indirect Methods in Nuclear Astrophysics with Transfer Reactions

Туміно, А.; Typel, S.

doi:10.1007/978-981-15-8818-1_1-1

Cited by 1 publication

(1 citation statement)

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“…The polar approximation, used in the standard THM prescription has been extensively verified [32] and constitutes a powerful validity test for the method which strenghtens the theoretical approach. We refer to [19,20] for further and advanced theoretical approach to the method. We just underline that THM allows to link the three-body cross section which is measured in the laboratory with the half-off-energy shell cross section of the binary process of astrophysical interest.…”

Section: The Trojan Horse Methodsmentioning

confidence: 99%

Investigating the Primordial Universe through nuclear physics

Pizzone,

Spampinato,

Sergi

et al. 2023

J. Phys.: Conf. Ser.

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Big Bang Nucleosynthesis (BBN) requires several nuclear physics inputs and nuclear reaction rates. An up-to-date compilation of direct cross sections of is given, being these ones among the most uncertain bare-nucleus cross sections. A particular attention is devoted to recently indirectly measured cross-section which give important hints for the nuclear astrophysics community. In reality, a significant experimental effort has been made over the past 10 years to explore reactions important to the BBN and determine their astrophysical S(E)-factor using the Trojan Horse Method (THM). Then, numerical calculations are made in the relevant temperature ranges for BBN (0.01<T9 <10) to determine the reaction rates and the relative error for the four reactions of interest. The effects of these values on the calculated primordial abundances and isotopical composition for H, He, and Li were then assessed by using them as input physics for computations of primordial nucleosynthesis. Additionally, recent findings regarding the 7Be(n,alpha)4He reaction rate were taken into consideration. These were put up against estimates of primordial abundance derived from observation at various astrophysical places. Additionally, perspectives on reactions will be examined.

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Section: The Trojan Horse Methodsmentioning

confidence: 99%