English
Related papers

Related papers: Atomic Data: Division XII / Commission 14 / Workin…

200 papers

Proposed is system of consistent mathematical models describing physical laws of a system of energy emitting bodies in dynamics, relativity and nuclear physics. It is shown the use of developed models for the description of systems,…

Dynamical Systems · Mathematics 2008-01-28 V. O. Groppen

Calculations of energy levels, radiative rates and lifetimes are reported for eight ions of tungsten, i.e. S-like (W LIX) to F-like (W LXVI). A large number of levels has been considered for each ion and extensive configuration interaction…

Atomic Physics · Physics 2016-02-15 K M Aggarwal , F P Keenan

Recent experimental data are analyzed, concerning the half-lives of the 229mTh isomer in neutral atoms and various ions. Calculation is performed on the united platform of interplay of traditional and subthreshold resonance conversion.…

Nuclear Theory · Physics 2018-10-05 F. F. Karpeshin , M. B. Trzhaskovskaya

To test the predictive power of ab initio nuclear structure theory, the lifetime of the second 2+ state in neutron-rich 20O, tau(2+_2 ) = 150(+80-30) fs, and an estimate for the lifetime of the second 2+ state in 16C have been obtained, for…

Exotic deuterium and helium are discussed. The S, P and D levels of antiprotonic and kaonic atoms are calculated. Absorptive, subthreshold antiproton-nucleon amplitudes are extracted from experimental data and compared to model…

Nuclear Theory · Physics 2007-05-23 S. Wycech , B. Loiseau

We calculate radiative lifetimes of collective electronic excitations of atoms in an infinite one dimensional lattice. The translational symmetry along the lattice restricts the photon wave vector component parallel to the lattice to the…

Quantum Physics · Physics 2010-05-20 Hashem Zoubi , Helmut Ritsch

Partition functions and dissociation equilibrium constants are presented for 291 diatomic molecules for temperatures in the range from near absolute zero to 10000 K, thus providing data for many diatomic molecules of astrophysical interest…

Instrumentation and Methods for Astrophysics · Physics 2016-03-23 Paul S. Barklem , Remo Collet

In this work, we report results from our extensive spectroscopic study on AlF and AlCl molecules, keeping in mind potential laboratory as well as astrophysical applications. We carry out detailed electronic structure calculations in both…

Atomic Physics · Physics 2023-03-16 R. Bala , V. S. Prasannaa , D. Chakravarti , D. Mukherjee , B. P. Das

Atomic experiments bring meaningful and valuable information on fundamental symmetries. The hypothesis of a large ($\sim 100$ eV) P-odd weak matrix element between single-particle states in heavy nuclei is inconsistent with the results of…

Nuclear Theory · Physics 2016-09-08 I. B. Khriplovich

Results for energy levels, radiative rates and electron impact excitation (effective) collision strengths for transitions in Be-like Cl XIV, K XVI and Ge XXIX are reported. For the calculations of energy levels and radiative rates the…

Solar and Stellar Astrophysics · Physics 2015-06-22 K. M. Aggarwal , F. P. Keenan

Recently, S. Aggarwal et al. [Chin. Phys. B 24 (2015) 053201] reported energy levels, radiative rates and lifetimes for the lowest 148 levels belonging to the 3s$^2$3p, 3s3p$^2$, 3s$^2$3d, 3s3p3d, 3p$^3$, 3p$^2$3d, 3s3d$^2$, 3p3d$^2$, and…

Atomic Physics · Physics 2016-02-15 K M Aggarwal

The lifetimes of 17 even-parity levels (3d5s, 3d4d, 3d6s, and 4p$^2$) in the region 57743-77837 cm$^{-1}$ of singly ionised scandium (\ion{Sc}{ii}) were measured by two-step time-resolved laser induced fluorescence spectroscopy. Oscillator…

Solar and Stellar Astrophysics · Physics 2017-08-23 A. Pehlivan Rhodin , M. T. Belmonte , L. Engstrom , H. Lundberg , H. Nilsson , H. Hartman , J. C. Pickering , C. Clear , P. Quinet , V. Fivet , P. Palmeri

Accurate ab initio calculations of the energy levels of the superheavy elements Z=112 are presented. Relativistic Hartree-Fock and configuration interaction methods are combined with the many-body perturbation theory to construct the…

Atomic Physics · Physics 2010-09-20 T. H. Dinh , V. A. Dzuba , V. V. Flambaum

Absorption-line spectroscopy is a powerful tool used to estimate element abundances in the nearby as well as distant universe. The accuracy of the abundances thus derived is, naturally, limited by the accuracy of the atomic data assumed for…

Instrumentation and Methods for Astrophysics · Physics 2015-06-17 Romas Kisielius , Varsha P. Kulkarni , Gary J. Ferland , Pavel Bogdanovich , Matt L. Lykins

Issues on the physics of, beamlines for, and detectors of neutrino oscillation discussed in Working Group 2 at Nufact'02 are summarized.

High Energy Physics - Phenomenology · Physics 2009-11-10 Bruno Autin , Deborah A. Harris , Steve F. King , Kevin S. McFarland , Osamu Yasuda

Energies and lifetimes (widths) of vibrational states above the lowest dissociation limit of $^{16}$O$_3$ were determined using a previously-developed efficient approach, which combines hyperspherical coordinates and a complex absorbing…

An electron density functional approach for the calculation of the nuclear multipole moments is presented. The electronic matrix elements entering the experimentally observed hyperfine electron-nucleus interaction constants in atoms are…

Nuclear Theory · Physics 2007-05-23 R. L. Pavlov , P. P. Raychev , V. P. Garistov , M. Dimitrova-Ivanovich , J. Maruani

Molecular line data for the rotational transitions of a number of astrophysically interesting species have been collected and are made publically available through the www. These data, including energy levels, statistical weights, Einstein…

Astrophysics · Physics 2007-05-23 F. L. Schoeier , F. F. S. van der Tak , E. F. van Dishoeck , J. H. Black

The book covers the certain questions of nuclear physics and nuclear astrophysics of light atomic nuclei and their processes at low and ultralow energies. Some methods of calculation of nuclear characteristics of the thermonuclear processes…

Nuclear Theory · Physics 2012-01-18 S. B. Dubovichenko

We propose 10 highly-charged ions as candidates for the development of next generation atomic clocks, quantum information, and search for $\alpha$-variation. They have long-lived metastable states with transition frequencies to the ground…

Atomic Physics · Physics 2015-06-19 M. S. Safronova , V. A. Dzuba , V. V. Flambaum , U. I. Safronova , S. G. Porsev , M. G. Kozlov
‹ Prev 1 4 5 6 7 8 10 Next ›