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Related papers: Electron fraction constraints based on Nuclear Sta…

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We investigate the influences of the nuclear composition on the weak interaction rates of heavy nuclei during the core collapse of massive stars. The nuclear abundances in nuclear statistical equilibrium (NSE) are calculated by some…

High Energy Astrophysical Phenomena · Physics 2017-03-21 Shun Furusawa , Hiroki Nagakura , Kohsuke Sumiyoshi , Chinami Kato , Shoichi Yamada

Recently, a list of the top 50 most important electron capture (EC) and $\beta$-decay (BD) nuclei, averaged throughout the stellar trajectory for $0.500 > Y_e > 0.400$, was published. The current study presents the calculation of EC and BD…

Nuclear Theory · Physics 2025-03-19 Asim Ullah , Jameel-Un Nabi

An empirical fit to electron-nucleus scattering for $A>2$ is made based on world data. It is valid for $0<W<3.2$ GeV and $0.2<Q^2<5$ GeV$^2$, and can be used with caution at lower $Q^2$. The fit is based on previous empirical fits to…

Nuclear Theory · Physics 2012-03-20 P. E. Bosted , V. Mamyan

We analyze the low energy NN interaction by confronting statistical vs systematic uncertainties. This is carried out with the help of model potentials fitted to the Granada-2013 database where a statistically meaningful partial wave…

Nuclear Theory · Physics 2016-06-15 R. Navarro Perez , J. E. Amaro , E. Ruiz Arriola

Nuclear equation of state plays an important role in the evolution of the Universe, in supernova explosions and, thus, in the production of heavy elements, and in stability of neutron stars. The equation constrains the two- and…

Nuclear Theory · Physics 2009-11-07 P. Danielewicz

The interplay of kinetic electron physics and atomic processes in ultrashort laser-plasma interactions provides a comprehensive understanding of electron energy distribution's impact on plasma properties. Notably, non-equilibrium electrons…

Plasma Physics · Physics 2024-03-27 M. S. Cho , H. -K. Chung , M. E. Foord , S. B. Libby , B. I. Cho

Electron correlation effects play a key role in stabilising two-electron atoms near the critical nuclear charge, representing the smallest charge required to bind two electrons. However, deciphering the importance of these effects relies on…

Chemical Physics · Physics 2021-03-31 Hugh G. A. Burton

Interference terms between monopole and quadrupole Coulomb form factors that contribute to the cross-section of electron scattering from polarized nuclei are studied within the plane wave Born approximation. By experimentally exploring the…

Nuclear Theory · Physics 2024-02-14 Pedro Sarriguren

Neutrino-nucleus elastic scattering ($\nu {\rm A}_{el}$) provides a unique laboratory to study the quantum-mechanical (QM) coherency effects in electroweak interactions. The deviations of the cross-sections from those of completely coherent…

High Energy Physics - Experiment · Physics 2021-05-12 V. Sharma , L. Singh , H. T. Wong , M. Agartioglu , J. -W. Chen , M. Deniz , S. Kerman , H. B Li , C. -P. Liu , K. Saraswat , M. K. Singh , V. Singh

Recent measurements of the positron energy spectrum obtained from inverse beta decay interactions of reactor electron antineutrinos show an excess in the 4 to 6 MeV region relative to current predictions. First-principle calculations of…

Nuclear Experiment · Physics 2015-01-14 D. A. Dwyer , T. J. Langford

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

What is the origin of nuclear clustering and how does it emerge from the nuclear interaction? While there is ample experimental evidence for this phenomenon, its theoretical characterization directly from nucleons as degrees of freedom…

Nuclear Theory · Physics 2020-10-20 K. Fossez

The electric field gradients (EFGs) at the (non-spherical) nucleus contribute to atomic and molecular hyperfine structure and govern Nuclear Quadrupole Resonance (NQR) and M\"ossbauer spectra. EFGs provide a highly sensitive probe of local…

The treatment of the electron-nucleus interaction based on the Mott differential cross section was extended to account for effects due to screened Coulomb potentials, finite sizes and finite rest masses of nuclei for electrons above 200 keV…

In the first stage of this work, we perform detailed calculations for the cross sections of the electron capture on nuclei under laboratory conditions. Towards this aim we exploit the advantages of a refined version of the proton-neutron…

Nuclear Theory · Physics 2015-02-26 P. G. Giannaka , T. S. Kosmas

Electron screening changes appreciably the magnitude of astrophysical nuclear reactions within stars. This effect is also observed in laboratory experiments on Earth, where atomic electrons are present in the nuclear targets. Theoretical…

Nuclear Theory · Physics 2018-01-24 C. A. Bertulani , C. Spitaleri

We assume nuclear statistical equilibrium (NSE) conditions and use Saha Equation to calculate mass fractions in stellar interior during presupernova evolution of massive stars. Our ensemble contains 728 nuclei. The distinguishing feature of…

Nuclear Theory · Physics 2025-03-10 Jameel-Un Nabi , Abdel Nasser Tawfik , Nada Ezzelarab , Ali Abas Khan

Heavy-ion reactions especially those induced by radioactive beams provide useful information about the density dependence of the nuclear symmetry energy, thus the Equation of State of neutron-rich nuclear matter, relevant for many…

The principle of maximum entropy (MaxEnt) applies to the canonical ensemble related to the number of particles, known as the $\mathcal{N}$-ensemble. This concept pertains to physical domains (or basins) that are treated as open systems…

Quantum Physics · Physics 2025-09-19 Roberto Carlos Bochicchio

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…

High Energy Astrophysical Phenomena · Physics 2015-07-17 V. Dexheimer , R. Negreiros , S. Schramm
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