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Neutrons can induce background events in underground experiments looking for rare processes. Neutrons in a MeV range in deep underground laboratories are produced in spontaneous fission processes and ($\alpha,n$) reactions. A number of…

核实验 · 物理学 2022-12-05 Vitaly A. Kudryavtsev , Piotr Krawczun , Rayna Bocheva

Nuclear physics offers us a powerful tool: using nuclear resonance absorption lines to infer the physical conditions in astrophysical settings which are otherwise difficult to deduce. Present-day technology provides an increase in…

天体物理仪器与方法 · 物理学 2009-02-23 J. Greiner , S. E. Boggs , G. DiCocco , K. T. Freese , N. Gehrels , D. H. Hartmann , A. Iyudin , G. Kanbach , A. A. Zdziarski

Realistic nuclear reaction cross-section models are an essential ingredient of reliable heavy-ion transport codes. Such codes are used for risk evaluation of manned space exploration missions as well as for ion-beam therapy dose…

核理论 · 物理学 2021-10-27 F Luoni , F Horst , CA Reidel , A Quarz , L Bagnale , L Sihver , U Weber , RB Norman , W de Wet , M Giraudo , G Santin , J Norbury , M Durante

Predictions of material activation inventories will be a key input to virtually all aspects of the operation, safety and environmental assessment of future fusion nuclear plants. Additionally, the neutron-induced transmutation (change) of…

材料科学 · 物理学 2016-04-29 M. R. Gilbert , J. -Ch. Sublet

The key Standard-Physics inputs of the Big Bang Nucleosynthesis (BBN) are the light nuclei reaction rates. Both the network and the nuclear rates have been recently reanalyzed and updated, and cosmological and New-Physics constraints…

天体物理学 · 物理学 2007-05-23 P. D. Serpico

Total reaction cross sections have been predicted for neucleons scattering from nuclei ranging in mass 6 to 238 and for projectile energies from just above noticeable giant resonance excitation to 300 MeV. So also have been the mass…

核理论 · 物理学 2007-05-23 P. K. Deb , K. Amos

The sensitivity of underground experiments searching for rare events such as dark matter, neutrino interactions or several beyond the standard model phenomena is often limited by the background caused by neutrons from spontaneous fission…

核实验 · 物理学 2025-07-22 Mihaela Parvu , Piotr Krawczun , Vitaly A. Kudryavtsev

A new integral formula, which has not been compiled in any integral tables or mathematical softwares, is proposed to obtain the analytical energy-angular spectra of the particles that are sequentially emitted from the discrete energy levels…

核理论 · 物理学 2015-12-16 Xiaojun Sun , Jingshang Zhang

In order to extract the precise physical information encoded in the gravitational and electromagnetic signals from powerful neutron-star merger events, we need to include as much of the relevant physics as possible in our numerical…

高能天体物理现象 · 物理学 2022-05-19 T. Celora , I. Hawke , P. C. Hammond , N. Andersson , G. L. Comer

The theoretical predictions of big bang nucleosynthesis (BBN) are dominated by uncertainties in the input nuclear reaction cross sections. In this paper, we examine the impact on BBN of the recent compilation of nuclear data and…

天体物理学 · 物理学 2009-09-15 Richard H. Cyburt , Brian D. Fields , Keith A. Olive

Higher-order pQCD corrections play an important role in the reproduction of data at high transverse momenta in the energy range 20 GeV $ \leq \sqrt{s} \leq 200$ GeV. Recent calculations of photon and pion production in $pp$ collisions yield…

核理论 · 物理学 2008-11-26 G. G. Barnafoldi , G. Fai , P. Levai , G. Papp , Y. Zhang

There is now a large and increasing body of experimental data and theoretical analyses for reactions that remove a single nucleon from an intermediate-energy beam of neutron- or proton-rich nuclei. In each such measurement, one obtains the…

核理论 · 物理学 2015-06-23 J. A. Tostevin , A. Gade

In this study, my main goal is to examine the nuclear matter properties across a wide range of conditions, such as temperature, density, asymmetry, pressure, and magnetic field. Understanding the effect of these factors on nuclear matter is…

核理论 · 物理学 2023-09-21 Vishal Parmar

Modern X-ray spectroscopy has proven itself as a robust tool for probing the electronic structure of atoms in complex environments. Despite working on energy scales that are much larger than those corresponding to nuclear motions, taking…

化学物理 · 物理学 2017-06-28 Sven Karsten , Sergey I. Bokarev , Saadullah G. Aziz , Sergei D. Ivanov , Oliver Kühn

The Coulomb barrier is in general much higher than thermal energy. Nuclear fusion reactions occur only among few protons and nuclei with higher relative energies than Coulomb barrier. It is the equilibrium velocity distribution of these…

核理论 · 物理学 2007-05-23 Jian-Miin Liu

We present a straightforward integration method to compute the abundance and temperature evolution in explosive scenarios. In this approach the thermal equation is implicitely coupled with chemical equations in order to avoid instabilities…

天体物理学 · 物理学 2009-11-07 Domingo Garcia-Senz , Ruben M. Cabezon Gomez

A simple statistical model in terms of light-front kinematic variables is used to explain the nuclear EMC effect in the range $x \in [0.2,~0.7]$, which was constructed by us previously to calculate the parton distribution functions (PDFs)…

核理论 · 物理学 2010-11-02 Yunhua Zhang , Lijing Shao , Bo-Qiang Ma

In this document, experimental nuclear structure data are evaluated for 8C. The details of each reaction populating 8C levels are compiled and evaluated. The combined results provide a set of adopted values that include level energies,…

核实验 · 物理学 2025-11-12 K. Setoodehnia , J. H. Kelley

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…

太阳与恒星天体物理 · 物理学 2016-11-09 Christian Iliadis , Kevin Anderson , Alain Coc , Frank Timmes , Sumner Starrfield

Relativistic energy density functionals (EDF) have become a standard tool for nuclear structure calculations, providing a complete and accurate, global description of nuclear ground states and collective excitations. Guided by the medium…

核理论 · 物理学 2015-05-27 Tamara Niksic , Dario Vretenar , Peter Ring