Zobrazeno 1 - 10
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pro vyhledávání: '"Feldmeier, Hans"'
Autor:
Feldmeier, Hans, Neff, Thomas
Clustering plays an important role in the structure of nuclei, especially for light nuclei in the $p$-shell. In nuclear cluster models these degrees of freedom are introduced explicitly. In the Resonating Group Method or in the Generator Coordinate M
Externí odkaz:
http://arxiv.org/abs/1612.02602
Autor:
Neff, Thomas, Feldmeier, Hans
$\textbf{Background:}$ The deuteron shows the essential features of short-range correlations found in all nuclei. Experimental observables related to short-range correlations are connected with the high-momentum components of one- and two-body moment
Externí odkaz:
http://arxiv.org/abs/1610.04066
Publikováno v:
Phys. Rev. C 92, 024003 (2015)
$\mathbf{Background:}$ Realistic nucleon-nucleon interactions induce short-range correlations in nuclei. To solve the many-body problem unitary transformations like the similarity renormalization group (SRG) are often used to soften the interactions.
Externí odkaz:
http://arxiv.org/abs/1506.02237
Short-range correlations in 4He are investigated using many-body wave functions obtained in the no-core shell model. The similarity renormalization group (SRG) is used to evolve the Argonne V8' interaction and the density operators. The effects of sh
Externí odkaz:
http://arxiv.org/abs/1503.06122
Autor:
Neff, Thomas, Feldmeier, Hans
The Hoyle state and other resonances in the continuum above the 3 alpha threshold in 12C are studied in a microscopic cluster model. Whereas the Hoyle state is a very sharp resonance and can be treated reasonably well in bound state approximation, th
Externí odkaz:
http://arxiv.org/abs/1409.3726
Autor:
Feldmeier, Hans, Neff, Thomas
In Fermionic Molecular Dynamics antisymmetrized products of Gaussian wave packets are projected on angular momentum, linear momentum, and parity. An appropriately chosen set of these states span the many-body Hilbert space in which the Hamiltonian is
Externí odkaz:
http://arxiv.org/abs/1307.6449
Autor:
Vantournhout, Klaas, Feldmeier, Hans
Publikováno v:
J. Phys. : Conf. Ser. 342, 012011 (2012)
The neutron star's crust and mantel are typical examples of non-uniform bulk systems with spacial localisations. When modelling such systems at low temperatures, as is the case in the crust, one has to work with antisymmetrised many-body states to ge
Externí odkaz:
http://arxiv.org/abs/1111.3221
Two-neutron densities obtained from microscopic wave functions of $^6$He and $^8$He are investigated to reveal di-neutron correlations. In particular, the comparison of the two-neutron density with the product of one-neutron densities is useful for a
Externí odkaz:
http://arxiv.org/abs/1107.5616
Publikováno v:
Proceedings of Science 2010, PoS(NICXI)017
We present here a first application of the Fermionic Molecular Dynamics (FMD) approach to low-energy nuclear reactions, namely the $^3$He($\alpha$,$\gamma$)$^7$Be radiative capture reaction. We divide the Hilbert space into an external region where t
Externí odkaz:
http://arxiv.org/abs/1012.4970
Publikováno v:
Prog. Part. Nucl. Phys., 66, pp. 271-275 (2011)
We present a novel method to study the dynamics of bulk fermion systems such as the neutron-star crust. By introducing periodic boundary conditions into Fermionic Molecular Dynamics, it becomes possible to examine the long-range many-body correlation
Externí odkaz:
http://arxiv.org/abs/1011.2928