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Global performance of covariant energy density functionals: ground state observables of even-even nuclei and the estimate of theoretical uncertainties

- S. Agbemava, A.V.Afanasjev, D.Ray, P.Ring
- Physics
- 18 April 2014

Covariant density functional theory (CDFT) is a modern theoretical tool for the description of nuclear structure phenomena. The current investigation aims at the global assessment of the accuracy of… Expand

Octupole deformation in the ground states of even-even nuclei: A global analysis within the covariant density functional theory

- S. Agbemava, A. Afanasjev, P. Ring
- Physics
- 10 March 2016

A systematic investigation of octupole deformed nuclei is presented for even-even systems with $Z\leq 106$ located between the two-proton and two-neutron drip lines. For this study we use five most… Expand

Neutron flux distribution in the irradiation channels of Am–Be neutron source irradiation facility

- M. Asamoah, B. Nyarko, +4 authors E. Mensimah
- Physics
- 1 June 2011

Abstract Monte Carlo (MCNP-5) simulations of the neutron fluxes were performed to determine the radial and axial neutron fluxes of the two irradiation sites of the 20 Ci 241 Am–Be neutron irradiation… Expand

Covariant density functional theory: Reexamining the structure of superheavy nuclei

- S. Agbemava, A. Afanasjev, T. Nakatsukasa, P. Ring
- Physics
- 27 October 2015

A systematic investigation of even-even superheavy elements in the region of proton numbers $100 \leq Z \leq 130$ and in the region of neutron numbers from the proton-drip line up to neutron number… Expand

Assessing theoretical uncertainties in fission barriers of superheavy nuclei

- S. Agbemava, A. Afanasjev, D. Ray, P. Ring
- Physics
- 20 April 2017

Theoretical uncertainties in the predictions of inner fission barrier heights in superheavy elements have been investigated in a systematic way for a set of state-of-the-art covariant energy density… Expand

Covariant energy density functionals: Nuclear matter constraints and global ground state properties

- A. Afanasjev, S. Agbemava
- Physics
- 25 April 2016

The correlations between global description of the ground state properties (binding energies, charge radii) and nuclear matter properties of the state-of-the-art covariant energy density functionals… Expand

Using isotope shift for testing nuclear theory: The case of nobelium isotopes

- Saleh O. Allehabi, V. Dzuba, V. Flambaum, A. Afanasjev, S. Agbemava
- Physics
- 26 January 2020

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… Expand

Nuclear landscape in covariant density functional theory

- A. Afanasjev, S. Agbemava, D. Ray, P. Ring
- Physics
- 4 November 2013

Abstract The neutron and proton drip lines represent the limits of the nuclear landscape. While the proton drip line is measured experimentally up to rather high Z values, the location of the neutron… Expand

Neutron drip line: Single-particle degrees of freedom and pairing properties as sources of theoretical uncertainties

- A. Afanasjev, S. Agbemava, D. Ray, P. Ring
- Physics
- 17 January 2015

The sources of theoretical uncertainties in the prediction of the two-neutron drip line are analyzed in the framework of covariant density functional theory. We concentrate on single-particle and… Expand

Thermal neutron cross section determination of short-to-medium lived nuclides using a 20 Ci Am–Be neutron source

- S. Agbemava, B. Nyarko, J. Fletcher, Robert Bright Mawuko Sogbadji, E. Mensimah, M. Asamoah
- Materials Science
- 1 August 2011

Abstract While there are growing demands for the nuclear data at higher energy regions than keV for up-to-date scientific and technological development, accurate capture cross sections at thermal… Expand

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