Indirect techniques in nuclear astrophysics: a review

Tribble, R. E.; Bertulani, C. A.; Cognata, M. La; Mukhamedzhanov, A. M.; Spitaleri, C.

doi:10.1088/0034-4885/77/10/106901

Cited by 215 publications

(305 citation statements)

References 283 publications

(487 reference statements)

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“…A review of the applications of Coulomb excitation to several reactions of astrophysical interest is found in Refs. [282][283][284]. One of the processes of interest for astrophysics is the excitation of collective resonances above the particle emission threshold.…”

Section: A Collective Resonances Neutron Skins and Neutron Starsmentioning

confidence: 99%

Current Status of Nuclear Physics Research

Bertulani

Hussein

2015

Braz J Phys

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In this review we discuss the current status of research in nuclear physics which is being carried out in different centers in the World. For this purpose we supply a short account of the development in the area which evolved over the last 9 decades, since the discovery of the neutron. The evolution of the physics of the atomic nucleus went through many stages as more data become available. We briefly discuss models introduced to discern the physics behind the experimental discoveries, such as the shell model, the collective model, the statistical model, the interacting boson model, etc., some of these models may be seemingly in conflict with each other, but this was shown to be only apparent.The richness of the ideas and abundance of theoretical models attests to the important fact that the nucleus is a really singular system in the sense that it evolves from two-body bound states such as the deuteron, to few-body bound states, such as 4 He, 7 Li, 9 Be etc. and up the ladder to heavier bound nuclei containing up to more than 200 nucleons. Clearly statistical mechanics, usually employed in systems with very large number of particles, would seemingly not work for such finite systems as the nuclei, neither do other theories which are applicable to condensed matter. The richness of nuclear physics stems from these restrictions. New theories and models are presently being developed. Theories of the structure and reactions of neutron-rich and proton-rich nuclei, called exotic nuclei, halo nuclei, or Borromean nuclei, deal with the wealth of experimental data that became available in the last 35 years. Further, nuclear astrophysics and stellar and Big Bang nucleosynthesis have become a more mature subject. Due to limited space, this review only covers a few selected topics, mainly those with which the authors have worked on. Our aimed potential readers of this review are nuclear physicists and physicists in other areas, as well as graduate students interested in pursuing a career in nuclear physics.

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Section: A Collective Resonances Neutron Skins and Neutron Starsmentioning

confidence: 99%

Current Status of Nuclear Physics Research

Bertulani

Hussein

2015

Braz J Phys

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“…In order to overcome the experimental problems connected to these measurements, new experimental techniques as well as indirect methods where proposed and used in many experiments over the last decades. One of these indirect methods, the Trojan Horse method (THM) [1][2][3][4][5][6][7][8][9][10][11][12][13], that will not be discussed here, has proved to be particularly flexible and reliable and it allowed for the measurement of the cross sections of various reactions of astrophysical interest. Nonetheless when reactions induced by Radioactive Ion Beams (RIBs) are considered, the yield is so low that even using indirect method the total detection efficiency becomes an issue.…”

Section: Introductionmentioning

confidence: 99%

Recent Results of Direct Nuclear Reaction Experiments for Stellar Nucleosynthesis

Cherubini¹

2017

Proceedings of the 14th International Symposium on Nuclei in the Cosmos (NIC2016)

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Nuclear cross sections between charged particles at stellar energies are among the faintest to be measured in nuclear physics. In order to overcome the experimental problems connected to these measurements, indirect methods where proposed and used in many experiments over the last decades. One of these, the Trojan Horse method, is based on the Quasi-Free reaction mechanism and proved to be particularly flexible and reliable and it allowed for the measurement of the cross sections of various reactions of astrophysical interest. The use and reliability of indirect methods become even more important when reactions induced by Radioactive Ion Beams are considered. As an example we will report here on the first measurement of 18 F(p,α) 15 O process in Nova conditions by applying the Trojan Horse method to the 18 F(d,α 15 O)n reaction. In order to establish the reliability of such an approach, the Treiman-Yang criterion is an important test and it will also be addressed in this paper.

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“…However, the measurement of the cross section in the reactions involving the neutrons present two principal problems: the production of the neutron beam or alternatively, using the inverse reactions, the detection of the neutrons. The aim of this work is to show how the application of the indirect method of the Trojan Horse Method (THM) allows to use the deuteron quasi-free (QF) break-up as a source of virtual neutrons [9,10].…”

Section: Introductionmentioning

confidence: 99%

Study of the ¹⁷O(n, \(\alpha \))¹⁴C Reaction: Extension of the Trojan Horse Method to the Neutrons Induced Reactions

Guardo¹,

Spitaleri²,

Lamia³

et al. 2017

Proceedings of the 14th International Symposium on Nuclei in the Cosmos (NIC2016)

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The experimental study of the 17 O(n,α) 14 C reaction has been performed in the energy range 0-350 keV. This reaction could play an important role in explaining heavy elements (s-process) nucleosynthesis in various astrophysical scenario. To overcome the practical problems arising from the neutrons production, a new application of the Trojan Horse Method has been recently suggested. In more details, the 17 O(n,α) 14 C reaction has been studied using the quasi-free 2 H( 17 O,α 14 C) 1 H reaction, induced at an energy of 43.5 MeV. The measurement allows one to investigate the ℓ=3, 75 keV resonance (E * =8.125 MeV, J π =5 − ), absent in the available direct measurements because of centrifugal suppression effects. Moreover, the results show that the contribution of the 166 keV and 236 keV resonances is in energy agreement with the available direct data. A clear contribution of the -7 keV subthreshold level is also present.

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Indirect techniques in nuclear astrophysics: a review

Cited by 215 publications

References 283 publications

Current Status of Nuclear Physics Research

Current Status of Nuclear Physics Research

Recent Results of Direct Nuclear Reaction Experiments for Stellar Nucleosynthesis

Study of the ¹⁷O(n, \(\alpha \))¹⁴C Reaction: Extension of the Trojan Horse Method to the Neutrons Induced Reactions

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Indirect techniques in nuclear astrophysics: a review

Cited by 215 publications

References 283 publications

Current Status of Nuclear Physics Research

Current Status of Nuclear Physics Research

Recent Results of Direct Nuclear Reaction Experiments for Stellar Nucleosynthesis

Study of the 17O(n, \(\alpha \))14C Reaction: Extension of the Trojan Horse Method to the Neutrons Induced Reactions

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Study of the ¹⁷O(n, \(\alpha \))¹⁴C Reaction: Extension of the Trojan Horse Method to the Neutrons Induced Reactions