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Anti-neutrino emission rates from nuclear reactors are determined from thermal power measurements and fission rate calculations. The uncertainties in these quantities for commercial power plants and their impact on the calculated…

High Energy Physics - Experiment · Physics 2009-11-13 Z. Djurcic , J. A. Detwiler , A. Piepke , V. R. Foster , L. Miller , G. Gratta

The rapid-neutron capture process ($r$ process) is identified as the producer of about 50\% of elements heavier than iron. This process requires an astrophysical environment with an extremely high neutron flux over a short amount of time…

Nuclear Experiment · Physics 2019-06-26 A. C. Larsen , A. Spyrou , S. N. Liddick , M. Guttormsen

Nucleosynthesis processes involve reactions on several thousand nuclei, both close to and far off stability. The preparation of reaction rates to be used in astrophysical investigations requires experimental and theoretical input. In this…

Nuclear Theory · Physics 2009-11-13 T. Rauscher

The spallation reactions are a type of nuclear reaction which occur in space by interaction of the cosmic rays with interstellar bodies. The first spallation reactions induced with an accelerator took place in 1947 at the Berkeley cyclotron…

Nuclear Experiment · Physics 2016-05-31 J. -C. David

We investigate the effects of thermonuclear reaction rate variations on 26Al production in massive stars. The dominant production sites in such events were recently investigated by using stellar model calculations: explosive neon-carbon…

Solar and Stellar Astrophysics · Physics 2015-05-27 Christian Iliadis , Art Champagne , Alessandro Chieffi , Marco Limongi

Volume II of two. This document could be of interest to anyone who wants to have a comprehensive inside information about the research in nuclear physics from its early beginnings to later years. It describes highlights of my research work…

Nuclear Experiment · Physics 2016-12-26 Ron W. Nielsen

We study the dependence of the CNO nuclear reaction rates on temperature, in the range of $10^7\div 10^8$ K, the typical range of temperature evolution from a Sun-like star towards a white dwarf. We show that the temperature dependence of…

Nuclear Theory · Physics 2009-11-10 F. Ferro , A. Lavagno , P. Quarati

Understanding signals from neutron stars requires knowledge about the transport inside the star. We review the transport properties and the underlying reaction rates of dense hadronic and quark matter in the crust and the core of neutron…

High Energy Astrophysical Phenomena · Physics 2019-03-06 Andreas Schmitt , Peter Shternin

A zone of reactions is determined and then exploited as a tool in studying the space-time structure of an interacting system formed in a collision of relativistic nuclei. The time dependence of the reaction rates integrated over spatial…

Nuclear Theory · Physics 2015-07-28 Dmitry Anchishkin , Anton Muskeyev , Stanislav Yezhov

This paper reports on the detailed rp-process reaction flow on an accreting neutron star and the resulting ashes of a type I X-ray burst. It is obtained by coupling a 298 isotope reaction network to a self-consistent one-dimensional model…

Astrophysics · Physics 2009-11-10 J. L. Fisker , E. Brown , M. Liebendoerfer , F. -K. Thielemann , M. Wiescher

The prediction of cross sections for nuclei far off stability is crucial in the field of nuclear astrophysics. We discuss the model mostly employed for such calculations: the statistical model (Hauser-Feshbach). Special emphasis is put on…

Astrophysics · Physics 2008-11-26 T. Rauscher , F. -K. Thielemann , K. -L. Kratz

An overview of the experimental aspects of nucleon transfer reactions with radioactive beams is presented, aimed principally at a researcher who is beginning their work in this area. Whilst the physics motivation and the means of…

Nuclear Experiment · Physics 2019-04-30 Wilton N. Catford

The propagation of uncertainties in reaction cross sections and rates of neutron-, proton-, and alpha-induced reactions into the final isotopic abundances obtained in nucleosynthesis models is an important issue in studies of…

High Energy Astrophysical Phenomena · Physics 2025-01-07 T. Rauscher , N. Nishimura , G. Cescutti , R. Hirschi , A. St. J. Murphy , C. Travaglio

Differing reaction rates of long-lived nuclear states can force the level occupations out of thermal equilibrium, causing calculations of overall rates which rely on thermal equilibrium to be inaccurate. Therefore, nucleosynthesis…

High Energy Astrophysical Phenomena · Physics 2018-08-08 G. Wendell Misch , Surja K. Ghorui , Yang Sun

The astrophysical p process, which is responsible for the origin of the proton rich stable nuclei heavier than iron, was investigated using a full nuclear reaction network for a type II supernova explosion when the shock front passes…

Astrophysics · Physics 2008-11-26 W. Rapp , J. Goerres , M. Wiescher , H. Schatz , F. Kaeppeler

Recent experimental data and progress in nuclear structure modeling have lead to improved descriptions of astrophysically important weak-interaction processes. The review discusses these advances and their applications to hydrostatic solar…

Nuclear Theory · Physics 2008-11-26 K. Langanke , G. Martinez-Pinedo

We extend the recently proposed mechanism for inducing low energy nuclear reactions (LENR) to compute the reaction rate of deuteron with a heavy nucleus. The process gets dominant contribution at second order in the time dependent…

Nuclear Theory · Physics 2024-07-23 Pankaj Jain , Harishyam Kumar , K. Ramkumar

Nucleosynthesis of heavy elements requires the use of different experimental and theoretical methods to determine astrophysical reaction rates than light element nucleosynthesis. Additionally, there are also larger uncertainties involved in…

High Energy Astrophysical Phenomena · Physics 2016-09-12 T. Rauscher , N. Nishimura , R. Hirschi

Neutron-induced reactions on unstable isotopes play a key role in the nucleosynthesis $i$--, $r$--, $p$--, $rp$-- and $\nu p$--processes occurring in astrophysical scenarios. While direct cross section measurements are possible for…

Instrumentation and Detectors · Physics 2020-06-24 Moshe Friedman

Possible modification in the velocity distribution in the non-resonant reaction rates leads to an extended reaction rate probability integral. The closed form representation for these thermonuclear functions are used to obtain the stellar…

Solar and Stellar Astrophysics · Physics 2014-09-09 H. J. Haubold , D. Kumar