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The problem of estimating non-resonant astrophysical S-factors and thermonuclear reaction rates, based on measured nuclear cross sections, is of major interest for nuclear energy generation, neutrino physics, and element synthesis. Many…

Solar and Stellar Astrophysics · Physics 2016-11-09 Christian Iliadis , Kevin Anderson , Alain Coc , Frank Timmes , Sumner Starrfield

Predictions of astrochemical models depend strongly on the reaction rate coefficients used in the simulations. We reviewed a number of key reactions for the chemistry of nitrogen-bearing species in the dense interstellar medium and proposed…

Astrophysics of Galaxies · Physics 2013-10-17 V. Wakelam , I. W. M. Smith , J. -C. Loison , D. Talbi , S. J. Klippenstein , A. Bergeat , W. D. Geppert , K. M. Hickson

We point out similarity of thermodynamic conditions reached in intermediate energy nuclear collisions and in supernova explosions. We show that a statistical approach, which has been previously applied for nuclear multifragmentation…

Nuclear Theory · Physics 2009-11-11 A. S. Botvina , I. N. Mishustin

Thermonuclear X-ray bursts from the surface of accreting neutron stars are the most common astrophysical explosions in our galaxy. They provide a unique window into the physics of neutron stars, the physics of matter under extreme…

High Energy Astrophysical Phenomena · Physics 2026-03-06 Yi Xu , Hendrik Schatz , Rita Lau , Zach Meisel , Peter Mohr

Reactions with radioactive nuclear beams at relativistic energies have opened new doors to clarify the mechanisms of stellar evolution and cataclysmic events involving stars and during the big bang epoch. Numerous nuclear reactions of…

Nuclear Theory · Physics 2020-04-22 Thomas Aumann , Carlos A. Bertulani

The origin of the elements is a fascinating question that scientists have been trying to answer for the last seven decades. The formation of light elements in the primordial universe and heavier elements in astrophysical sources occurs…

Solar and Stellar Astrophysics · Physics 2019-01-30 V. Liccardo , M. Malheiro , M. S. Hussein , B. V. Carlson , T. Frederico

The photonuclear reactions which is induced by high-energetic photon are one of the important type of reactions in the nuclear structure studies. In this reaction, a target material is bombarded by photons with the energies in the range of…

Nuclear Theory · Physics 2020-03-18 Serkan Akkoyun , Hüseyin Kaya , Abdulkadir Şeker , Saliha Yeşilyurt

Type I X-ray bursts are violent stellar events that take place on the H/He-rich envelopes of accreting neutron stars. We have investigated the role played by uncertainties in nuclear processes on the nucleosynthesis accompanying these…

Astrophysics · Physics 2009-11-13 Anuj Parikh , Jordi Jose , Fermin Moreno , Christian Iliadis

The continued interest to the study of the radiative neutron capture on atomic nuclei is caused, on the one hand, by the important role of this process in the analysis of many fundamental properties of nuclei and nuclear reactions, and, on…

Nuclear Theory · Physics 2014-01-29 S. B. Dubovichenko , A. V. Dzhazairov-Kakhramanov , N. A. Burkova

An introduction to nucleosynthesis, the creation of the elements in the big bang, in interstellar matter and in stars is given. The two--step process $^4$He(2n,$\gamma$)$^6$He and the reverse photodisintegration $^6$He($\gamma$,2n)$^4$He…

Nuclear Theory · Physics 2007-05-23 H. Oberhummer , W. Balogh , V. D. Efros , H. Herndl , R. Hofinger

The nuclear reaction network is usually studied via precise calculation of differential equation sets, and much research interest has been focused on the characteristics of nuclides, such as half-life and size limit. In this paper, however,…

Nuclear Theory · Physics 2016-08-30 Liang Zhu , Yu-Gang Ma , Qu Chen , Ding-Ding Han

In this brief review we discuss the basic theoretical concepts used in the experimental studies of the most common cases of direct reactions such as (a) elastic scattering, (b) inelastic scattering, (c) Coulomb excitation, (d) transfer…

Nuclear Theory · Physics 2022-01-25 Carlos A. Bertulani , Angela Bonaccorso

We present a nucleosynthesis calculation of a 25 solar mass star of solar composition that includes all relevant isotopes up to polonium. In particular, all stable isotopes and necessary nuclear reaction rates are covered. We follow the…

Astrophysics · Physics 2015-06-24 A. Heger , S. E. Woosley , T. Rauscher , R. D. Hoffman , M. M. Boyes

The reactions of relevance for stellar evolution are difficult to measure directly in the laboratory at the small astrophysical energies. In recent years indirect reaction methods have been developed and applied to extract low-energy…

Nuclear Theory · Physics 2015-06-15 C. A. Bertulani

Detailed balance is often invoked in discussions of nuclear weak transitions in astrophysical environments. Satisfaction of detailed balance is rightly touted as a virtue of some methods of computing nuclear transition strengths, but we…

Nuclear Theory · Physics 2017-07-26 G. Wendell Misch

The prediction of stellar ($\gamma$,$\alpha$) reaction rates for heavy nuclei is based on the calculation of ($\alpha$,$\gamma$) cross sections at sub-Coulomb energies. These rates are essential for modeling the nucleosynthesis of so-called…

Nuclear Theory · Physics 2020-07-15 P. Mohr , Zs. Fülöp , Gy. Gyürky , G. G. Kiss , T. Szücs

We study nuclear reaction cross-sections for stable and unstable projectiles and targets within Glauber model, using densities obtained from various relativistic mean field formalisms. The calculated cross-sections are compared with the…

Nuclear Theory · Physics 2008-11-26 A. Shukla , B. K. Sharma , R. Chandra , P. Arumugam , S. K. Patra

The stability of thermonuclear burning of hydrogen and helium accreted onto neutron stars is strongly dependent on the mass accretion rate. The burning behavior is observed to change from Type I X-ray bursts to stable burning, with…

High Energy Astrophysical Phenomena · Physics 2015-06-19 L. Keek , R. H. Cyburt , A. Heger

Accurate knowledge of the nuclear level density is important both from a theoretical viewpoint as a powerful instrument for studying nuclear structure and for numerous applications. For example, astrophysical reactions responsible for the…

Nuclear Theory · Physics 2017-10-10 S. Karampagia , R. A. Senkov , V. Zelevinsky

In this review, we emphasize the interplay between astrophysical observations, modeling, and nuclear physics laboratory experiments. Several important nuclear cross sections for astrophysics have long been identified e.g.…

Nuclear Experiment · Physics 2016-05-26 Alain Coc , Fairouz Hammache , Juergen Kiener
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