Gogny force

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August undefined, 2024

The Gogny force, named after the renowned French physicist Daniel Gogny , has been used to describe many different facets of nuclear structure since its inception back in the early seventies of the past century. It has been mainly used in a mean field framework including pairing correlations where the Hartree–Fock–Bogoliubov (HFB) mean ... WebMay 22, 2024 · The Gogny force which has been widely and successfully used in mean-field theory can provide reasonable two-body matrix elements for cross-shell calculations. The log ft values and β -decay level schemes are systematically studied using the D1S-Gogny interaction and compared with the SDPF-M results and experimental data.

Many-body theory and Energy Density Functionals SpringerLink

WebJan 1, 2024 · here. Only later we will specialize to the D1S force [5]. In general, the Gogny-type of force [4] can be written as V(R;s) = Xi=2 i=1 (W i+ BP˙ HP˝ MP˙P˝)v(s) + h t 3 (1 … authors like joanna trollope

Daniel Marc Gogny Lawrence Livermore National Laboratory

WebJun 1, 2009 · The Gogny force is an effective force in the nuclear medium. In the case of bare nucleon–nucleon forces with a strong short range repulsion this would be no longer the case. It is known [58] that, by integrating out the high momentum components of the bare force, one obtains from most of the realistic NN -potentials the same interaction a low ... WebIn a recent publication [] the possibility to reproduce the gap in nuclear matter, as obtained e.g. from the Paris NN force, by an effective density dependent zero range force, was investigated. Supplied with an energy cut off such effective forces turned indeed out to be able to reproduce very reasonably the gap values in the isospin T=0 and T=1 channels … WebJul 26, 2016 · We present the Gogny-Hartree-Fock-Bogoliubov model which reproduces nuclear masses with an accuracy comparable with the best mass formulas. In contrast to … authors like josie silver

Structure properties of even–even actinides at normal and …

Gogny-force derived effective shell-model Hamiltonian

WebGogny force putting special emphasis in those aspects related to symmetry restoration and large amplitude collective motion. There are already two long papers in the literature that overview some aspects of the applications of the Gogny force in nuclear structure but in our opinion they only offer partial views of the whole picture. WebDisney G-Force. G-Force draws you into the adventures of an elite team of trained guinea pigs on a mission to thwart a sinister plot to destroy the world. Take control of both G-Force commander Darwin and his … gaz tarif edfWebheavy-ion collisions [43,52]. Similar to the Gogny case, the MDI force may be expressed as a zero-range contribution plus a ﬁnite-range term, but with a Yukawa form factor instead of a Gaussian. A parameter x of the MDI interaction can be varied to modify the uncertain density dependence of the symmetry energy and of the gaz t2

"http://www.kernz.org/kernz08/proceedings/Hilaire-gogny2.pdf " - Gogny force

Gogny force

WebGOGNY FORCE CARACTERISTICS The Gogny effective interaction reads In this expression, the first line represents the central finite range part (μj) of the force, the second line represents the density dependent term and … Webshell-model calculations based on the Gogny force have successfully explained both binding energies and spectra of the p-shell and sd-shell nuclei [47], taking the advantage of the density dependence of the Gogny interaction. The present calculations combine the Gogny force and the effective ΛN interaction to investigate the p-shell hypernuclei.

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WebJan 26, 2024 · The Gogny force D1S [2] have been used in large-scale Hartree-Fock-Bogoliubov calculations along the whole periodic table [3]. This force, as well as the improved parametrizations D1N [4] and D1M [5], are, actually, benchmarks of the deformation and pairing properties of the ground-state of finite nuclei. WebOct 17, 2024 · The most successful Gogny interactions of the D1 family, namely D1S, D1N and D1M, suffer the common problem of a too soft neutron matter equation of state at …

WebSep 10, 2024 · Standard examples of functionals in the p.h. channel are the Skyrme and Gogny functionals; in the pairing channel, energy functionals are often derived from simple density-dependent, zero-range two-body potentials. The nuclear EDF approach can be extended to describe systems at finite temperature. WebFinal force New constraints Good description of masses, radii and nuclear matter properties using consistent G E f values FIG. 4: Computational scheme followed to adjust the Gogny force parameters on nuclear masses, radii as well as selected nuclear matter properties. Among the 14 parameters of the Gogny force, 2 are kept unchanged and 12 ...

WebApr 10, 2024 · The D1M ⁎ force is a new Gogny parametrization of the type of Eq. (1), introduced here for the first time. It is devised to keep the quality of the description of finite nuclei at the level of D1M and to be able to predict NSs fulfilling the astrophysical observations of two solar masses. WebJul 6, 2024 · Nowadays, the Gogny force is a referent in the theoretical description of nuclear structure phenomena. Its phenomenological character manifests in a simple analytical form that allows for implementations of techniques both at the mean field and beyond all over the nuclide chart.

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Web采用基于微观断裂机制的空穴扩张模型(VGM)和应力修正应变模型(SMCS)对XK型相贯节点进行断裂预测,分析了有限元模型中考虑焊缝构型与否对断裂预测结果的影响.通过与试验结果的对比,证明了合理考虑焊缝构型在相贯节点断裂预测中的重要性,验证了VGM模型用于预测相贯节点在单调荷载作用下延性断裂 ... gaz tarif acheminement t2WebSep 27, 1999 · These surfaces as well as the tensor of inertia entering H ^ coll are deduced from constrained Hartree-Fock-Bogoliubov calculations based on Gogny force. A two … authors like sue lynn tanWebOct 6, 2024 · Abstract. In this paper, we present a recent evolution of the analytical form of the Gogny force. The extension of the density-dependent term to a finite range is … gaz tarbesWebSep 5, 2024 · The analytical form of the Gogny force is advantageous to treat cross-shell cases, while it is difficult to determine the cross-shell matrix elements and single-particle … gaz sénégalWebFeb 1, 1991 · In this work we study the effect of the nuclear tensor force on properties related with deformation. We focus on isotopes in the Mg, Si, S, Ar, Sr and Zr chains within the Hartree–Fock–Bogoliubov theory using the D1ST2a Gogny interaction. Contributions to the tensor energy in terms of saturated and unsaturated subshells are analyzed. authors similar to eloisa jamesWebTwo theoretical nuclear models, Hartree-Fock plus pairing in the BCS approximation (HF-BCS) with Skyrme SLy6 parametrization and Hartree-Fock-Bogolyubov (HFB) with Gogny D1S force, are used to calculate the nuclear masses. gaz tarif 2023WebAug 31, 2024 · Abstract. We propose a new Gogny parametrization, which we call D1M ^ {*}, aimed to be successful in the study of the properties of neutron stars and, at the same time, to describe finite nuclei with a similar quality as the D1M Gogny interaction. D1M ^ {*} is able to reach up to 2 solar masses (M _\odot ) for a neutron star and give good ... authority jokes