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The MICZ-Kepler Problems in All Dimensions
The Kepler problem is a physical problem about two bodies which attract each
other by a force proportional to the inverse square of the distance. The
MICZ-Kepler problems are its natural cousins and have been previously
generalized from dimension three to dimension five. In this paper, we construct
and analyze the (quantum) MICZ-Kepler problems in all dimensions higher than
two.Comment: A minor technical error in section 5.2 (see footnote 6) is correcte
Challenge on the Astrophysical R-process Calculation with Nuclear Mass Models
Our understanding of the rapid neutron capture nucleosynthesis process in
universe depends on the reliability of nuclear mass predictions. Initiated by
the newly developed mass table in the relativistic mean field theory (RMF), in
this paper the influence of mass models on the -process calculations is
investigated assuming the same astrophysical conditions. The different model
predictions on the so far unreachable nuclei lead to significant deviations in
the calculated r-process abundances.Comment: 3 pages, 3 figure
Solid-state interdiffusion reactions in Ni/Ti and Ni/Zr multilayered thin films
We have performed a comparative transmission electron microscopy study of solid-state interdiffusion reactions in multilayered Ni/Zr and Ni/Ti thin films. The Ni-Zr reaction product was amorphous while the Ni-Ti reaction product was a simple intermetallic compound. Because thermodynamic and chemical properties of these two alloy systems are similar, we suggest kinetic origins for this difference in reaction product
Effective field theory for triaxially deformed nuclei
Effective field theory (EFT) is generalized to investigate the rotational
motion of triaxially deformed even-even nuclei. A Hamiltonian, called the
triaxial rotor model (TRM), is obtained up to next-to-leading order (NLO)
within the EFT formalism. Its applicability is examined by comparing with a
five-dimensional collective Hamiltonian (5DCH) for the description of the
energy spectra of the ground state and band in Ru isotopes. It is
found that by taking into account the NLO corrections, the ground state band in
the whole spin region and the band in the low spin region are well
described. The results presented here indicate that it should be possible to
further generalize the EFT to triaxial nuclei with odd mass number.Comment: 21 pages, 9 figure
Behavior of the collective rotor in nuclear chiral motion
The behavior of the collective rotor in the chiral motion of triaxially
deformed nuclei is investigated using the particle rotor model by transforming
the wave functions from the -representation to the -representation. After
examining the energy spectra of the doublet bands and their energy differences
as functions of the triaxial deformation, the angular momentum components of
the rotor, proton, neutron, and the total system are investigated. Moreover,
the probability distributions of the rotor angular momentum (-plots) and
their projections onto the three principal axes (-plots) are analyzed. The
evolution of the chiral mode from a chiral vibration at the low spins to a
chiral rotation at high spins is illustrated at triaxial deformations
and .Comment: 21 pages, 6 figure
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