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Testing the density matrix expansion against ab initio calculations of trapped neutron drops
density matrix neutron drops
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2011/7/20
Microscopic input to a universal nuclear energy density functional can be provided through the density matrix expansion (DME), which has recently been revived and improved.
Uncertainties in nuclear transition matrix elements for neutrinoless $ββ$ decay II: the heavy Majorana neutrino mass mechanism
matrix elements neutrino mass mechanism
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2011/7/20
Employing four different parametrization of the pairing plus multipolar type of effective two-body interaction and three different parametrizations of Jastrow-type of short range correlations, the unc...
Spectral distribution method for neutrinoless double-beta decay nuclear transition matrix elements: Binary correlation results
neutrinoless double-beta decay nuclear transition
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2011/7/20
Neutrinoless double-beta decay nuclear transition matrix elements are generated by an effective two-body transition operator and it consists of Gamow-Teller like and Fermi like (also tensor) operators...
Spin operator matrix elements in the quantum Ising chain: fermion approach
Quantum Ising chain form-factors fermions Onsager algebra
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2010/11/22
Using some modification of the standard fermion technique we derive factorized formula for
spin operator matrix elements (form-factors) between general eigenstates of the Hamiltonian
of quantum Isin...
Influence of two different representations of the G-matrix to the in-medium nucleon-nucleon cross sections
DBHF self-energy representation
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2009/8/14
We calculate the in-medium nucleon-nucleon scattering cross sections from the G-matrix using the Dirac-Brueckner-Hartree-Fock (DBHF) approach. And we investigate the influence of the different represe...
Coulomb excitation matrix elements are often expressed in terms of the scalar electric potential and the electromagnetic fields. We show that, through an appropriate gauge transformation, the excitati...
Nuclear matrix elements (MGT) for two-neutrino double beta transitions of selected nuclei were calculated via a QRPA approach by considering the charge-exchange spin-spin interactions in the particle-...