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相关论文: Nuclear Data for Astrophysical Modeling

200 篇论文

Neutron stars are rich laboratories of multiple branches of modern physics. These include gravitational physics, nuclear and particle physics, (quantum) electrodynamics, and plasma astrophysics. In this chapter, we present the pioneering…

高能天体物理现象 · 物理学 2023-04-05 Joonas Nättilä , Jari J. E. Kajava

The density dependence of the symmetry energy in the equation of state of isospin asymmetric nuclear matter is of significant importance for studying the structure of systems as diverse as the neutron-rich nuclei and the neutron stars. A…

核实验 · 物理学 2014-11-18 D. V. Shetty , S. J. Yennello , G. A. Souliotis

Photon strength functions describing the average response of the nucleus to an electromagnetic probe are key input information in the theoretical modelling of nuclear reactions. Consequently they are important for a wide range of fields…

We review a variety of theoretical and experimental investigations aimed at improving our knowledge of the nuclear matter equation of state. Of particular interest are nuclear matter extreme states in terms of density and/or isospin…

核理论 · 物理学 2015-05-18 Francesca Sammarruca

We propose a novel idea to construct an effective interaction under energy-density-functional (EDF) theories which is adaptive to the enlargement of the model space. Guided by effective field theory principles, iterations of interactions as…

核理论 · 物理学 2022-07-22 C. J. Yang , W. G. Jiang , S. Burrello , M. Grasso

Nuclear astrophysics is an interdisciplinary research field of nuclear physics and astrophysics, seeking for the answer to a question, how to understand the evolution of the Universe with the nuclear processes which we learn. We review the…

Density functional theory (DFT) became a universal approach to compute ground-state and excited configurations of many-electron systems held together by an external one-body potential in condensed-matter, atomic, and molecular physics. At…

核理论 · 物理学 2011-09-30 J. Dobaczewski

Reliable predictions of the static and dynamic properties of a nucleus require a fully microscopic description of both ground and excited states of this complicated many-body quantum system. Predictive calculations are key to understanding…

核理论 · 物理学 2022-10-19 Emanuel V. Chimanski , Eun Jin In , Jutta E. Escher , Sophie Péru , Walid Younes

Neutron star is the ultimate testing place for the physics of dense nuclear matter. Before the detection of gravitational waves from the merger of binary neutron stars, various nuclear equations of state have been used to estimate the…

核理论 · 物理学 2020-06-03 Young-Min Kim , Kyujin Kwak , Chang Ho Hyun , Hana Gil , Chang-Hwan Lee

Abundance observations indicate the presence of often surprisingly large amounts of neutron capture (i.e., s- and r-process) elements in old Galactic halo and globular cluster stars. These observations provide insight into the nature of the…

天体物理学 · 物理学 2007-05-23 John J. Cowan , James E. Lawler , Christopher Sneden , E. A. Den Hartog , Jason Collier

Nuclear density functional theory (DFT) is the tool of choice in describing properties of complex nuclei and intricate phases of bulk nucleonic matter. It is a microscopic approach based on an energy density functional representing the…

核理论 · 物理学 2016-11-30 Bastian Schuetrumpf , Chunli Zhang , Witold Nazarewicz

The present contribution does not aim at replacing the huge and often excellent literature on DFT for atomic nuclei, but tries to provide an updated introduction to this topic. The goal would be, ideally, to help a fresh M.Sc. or Ph.D.…

核理论 · 物理学 2019-08-09 G. Colò

We calculate field isotope shifts for nobelium atoms using nuclear charge distributions which come from different nuclear models. We demonstrate that comparing calculated isotope shifts with experiment can serve as a testing ground for…

原子物理 · 物理学 2020-08-26 Saleh O. Allehabi , V. A. Dzuba , V. V. Flambaum , A. V. Afanasjev , S. E. Agbemava

Beta-delayed neutron emission is important for nuclear structure and astrophysics as well as for reactor applications. Significant advances in nuclear experimental techniques in the past two decades have led to a wealth of new measurements…

The nuclei fraction in cosmic rays (CR) far exceeds the fraction of other CR species, such as antiprotons, electrons, and positrons. Thus the majority of information obtained from CR studies is based on interpretation of isotopic abundances…

天体物理学 · 物理学 2009-11-10 I. V. Moskalenko , A. W. Strong , S. G. Mashnik

Few years ago, Boltzmann neutrino transport led to a new and reliable generation of spherically symmetric models of stellar core collapse and postbounce evolution. After the failure to prove the principles of the supernova explosion…

天体物理学 · 物理学 2008-11-26 M. Liebendoerfer , T. Fischer , C. Fröhlich , F. -K. Thielemann , S. Whitehouse

In view of new constraints put forth by recent observations and measurements in the realm of astrophysics and nuclear physics, we update the non-linear realization of the sigma model as to reflect such constraints. By doing this, we obtain…

高能天体物理现象 · 物理学 2015-07-17 V. Dexheimer , R. Negreiros , S. Schramm

The equations of state (EoSs) governing neutron star (NS) matter obtained for both non-relativistic and relativistic mean-field models are systematically confronted with a diverse set of terrestrial data and astrophysical observations…

核理论 · 物理学 2024-05-20 Sk Md Adil Imam , Tuhin Malik , Constança Providência , B. K. Agrawal

The cosmic energy density in the form of radiation before and during Big Bang Nucleosynthesis (BBN) is typically parameterized in terms of the effective number of neutrinos N_eff. This quantity, in case of no extra degrees of freedom,…

宇宙学与河外天体物理 · 物理学 2015-03-17 G. Mangano , G. Miele , S. Pastor , O. Pisanti , S. Sarikas