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相关论文: Propagation of uncertainties in the Skyrme energy-…

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We show how theoretical uncertainties due to nuclear effects may be incorporated into global fits of proton parton distribution functions (PDFs) that include deep-inelastic scattering and Drell-Yan data on nuclear targets. We specifically…

高能物理 - 唯象学 · 物理学 2019-05-01 Richard D. Ball , Emanuele R. Nocera , Rosalyn L. Pearson

The Extended Theory of Finite Fermi Systems(ETFFS) describes nuclear excitations considering phonons and pairing degrees of freedom, using experimental single particle energies and the effective Landau-Migdal interaction. Here we use the…

核理论 · 物理学 2010-11-04 A. Avdeenkov , F. Gruemmer , S. Kamerdzhiev , S. Krewald , N. Lyutorovich , J. Speth

Spectral functions do not fully describe quasielastic electron and neutrino scattering from nuclei because they only model the initial state. Final state interactions distort the shape of the differential cross section at the peak and…

核理论 · 物理学 2016-06-02 A. Bodek , M. E. Christy , B. Coopersmith

Nuclear yields are powerful probes of supernova explosions, their engines and their progenitors. In addition, as we improve our understanding of these explosions, we can use nuclear yields to probe dense matter and neutrino physics, both of…

Density Functional Theory (DFT) calculations are being routinely used to identify new material candidates that approach activity near fundamental limits imposed by thermodynamics or scaling relations. DFT calculations have finite…

材料科学 · 物理学 2018-04-10 Dilip Krishnamurthy , Vaidish Sumaria , Venkatasubramanian Viswanathan

Nuclear matter is studied within the Density Functional Theory (DFT) framework. Our method employs a finite number of nucleons in a box subject to periodic boundary conditions, in order to simulate infinite matter and study its response to…

核理论 · 物理学 2023-04-26 Francesco Marino , Gianluca Colò , Xavier Roca-Maza , Enrico Vigezzi

The neutron-proton Fermi-energy difference and the correlation to nucleon separation energies for some magic nuclei are investigated with the Skyrme energy density functionals and nuclear masses, with which the nuclear symmetry energy at…

核理论 · 物理学 2013-03-28 Ning Wang , Li Ou , Min Liu

Within the framework of Skyrme energy-density functional theory, the nucleus-nucleus potential is calculated and potential energy surface is obtained with different effective forces for accurately estimating the formation cross sections of…

核理论 · 物理学 2022-06-28 Cheng Peng , Zhao-Qing Feng

We illustrate a step towards the construction of a power counting in energy-density-functional (EDF) theories, by analyzing the equations of state (EOSs) of both symmetric and neutron matter. Within the adopted strategy, next-to-leading…

核理论 · 物理学 2020-12-30 Stefano Burrello , Marcella Grasso , Chieh-Jen Yang

Most of the Skyrme interactions are known to predict spin or isospin instabilities beyond the saturation density of nuclear matter which contradict predictions based on realistic interactions. A modification of the standard Skyrme…

核理论 · 物理学 2015-05-13 Jérôme Margueron , Hiroyuki Sagawa

We systematically examine uncertainties from fitting rare earth single-ion crystal electric field (CEF) Hamiltonians to inelastic neutron scattering data. Using pyrochlore and delafossite structures as test cases, we find that uncertainty…

强关联电子 · 物理学 2022-04-29 Allen Scheie

Based on the standard Skyrme energy density functionals together with the extended Thomas-Fermi approach, the properties of symmetric and asymmetric nuclear matter represented in two macroscopic-microscopic mass formulas: Lublin-Strasbourg…

核理论 · 物理学 2016-03-10 Ning Wang , Min Liu , Li Ou , Yingxun Zhang

We demonstrate that the matter density distribution in the surface region is determined well by the use of the relatively low-intensity beams that become available at the upcoming radioactive beam facilities. Following the method used in…

核理论 · 物理学 2009-11-07 Akihisa Kohama , Ryoichi Seki , Akito Arima , Shuhei Yamaji

We study theoretically how we can determine the neutron density distributions of unstable nuclei from proton elastic scattering. We apply the relativistic impulse model to study the sensitivities of the observables to the density…

核理论 · 物理学 2015-06-26 K. Kaki , S. Hirenzaki

In the present work, the isovector dipole responses, both in the resonance region and in the low-energy sector, are investigated using the microscopic nuclear Energy Density Functionals (EDFs). The self-consistent QRPA model based on Skyrme…

核理论 · 物理学 2020-01-08 E. Yüksel , G. Colò , E. Khan , Y. F. Niu

Evaluated nuclear data uncertainties are often perceived as unrealistic, most often because they are thought to be too small. The impact of this issue in applied nuclear science has been discussed widely in recent years. Commonly suggested…

数据分析、统计与概率 · 物理学 2020-04-28 R. Capote , S. Badikov , A. Carlson , I. Duran , F. Gunsing , D. Neudecker , V. G. Pronyaev , P. Schillebeeckx , G. Schnabel , D. L. Smith , A. Wallner

The model dependence in the correlations of the neutron-skin thickness in heavy nuclei with various symmetry energy parameters is analyzed by using several families of systematically varied microscopic mean field models. Such correlations…

Parity violating electron nucleus scattering is a clean and powerful tool for measuring the spatial distributions of neutrons in nuclei with unprecedented accuracy. Parity violation arises from the interference of electromagnetic and weak…

核理论 · 物理学 2014-11-18 C. J. Horowitz , S. J. Pollock , P. A. Souder , R. Michaels

We present parton distribution functions which include a quantitative estimate of its uncertainties. The parton distribution functions are optimized with respect to deep inelastic proton data, expressing the uncertainties as a density…

高能物理 - 唯象学 · 物理学 2007-05-23 Walter T. Giele , Stephane A. Keller , David A. Kosower

The Fayans energy density functional (EDF) has been very successful in describing global nuclear properties (binding energies, charge radii, and especially differences of radii) within nuclear density functional theory. In a recent study,…

核理论 · 物理学 2024-02-26 Paul-Gerhard Reinhard , Jared O'Neal , Stefan M. Wild , Witold Nazarewicz