Experimental and theoretical studies of the 4s 2 n p 2 P sequence in neutral gallium

Abstract

Experimental and Theoretical-studies of the 4s2 N P 2p Sequence In Neutral GalliumJonsson, G; Levinson, C; Lindgren, I; Persson, Anders; Wahlström, Claes-Göran General rights Copyright and moral rights for the publications made accessible in the public portal are retained by the authors and/or other copyright owners and it is a condition of accessing publications that users recognise and abide by the legal requirements associated with these rights.• Users may download and print one copy of any publication from the public portal for the purpose of private study or research.• You may not further distribute the material or use it for any profit-making activity or commercial gain • You may freely distribute the URL identifying the publication in the public portal Take down policy If you believe that this document breaches copyright please contact us providing details, and we will remove access to the work immediately and investigate your claim. Using time-resolved laser spectroscopy lifetime values as well as hyperfine coupling constants have been determined for the 4s2np zP3/2 (n=7-11) states in 69Ga and 71Ga.Theoretical calculations of hyperfine structures based on many-body perturbation theory have been performed in the same sequence (n=4-8) for both fine-structure components. The theoretical values are compared with existing experimental data.

Excitation energies, hyperfine constants, E1 transition rates and lifetimes of 4s2nlstates in neutral gallium

“…We calculate lifetimes of ns 1/2 (n = 5-8), np j (n = 5-8), nd j (n = 4-7), nf j (n = 5-6) and 5g j states in gallium using the SD results for dipole matrix elements and energies. We list lifetimes τ (SD) obtained by the SD method in table 10 and compare our values with available experimental measurements given in [11,12,15,29,30]. The measurements for the first lower Table 7.…”

“…Hyperfine constants A in 69 Ga and 71 Ga were obtained in the Hartree-Fock approximation for the 4s 2 6p j states by Neijzen and Dõnszelmann [14]. The correlation correction was treated in [15] using many-body perturbation theory including core polarization, correlation and relativistic effects. Theoretical results in 69 Ga were presented for the 4s 2 np j states (n = 4-8) by Jõnsson et al [15].…”

“…The correlation correction was treated in [15] using many-body perturbation theory including core polarization, correlation and relativistic effects. Theoretical results in 69 Ga were presented for the 4s 2 np j states (n = 4-8) by Jõnsson et al [15].…”

“…We investigate the hyperfine structure of the 4s 2 np j (n = 4-8), 4s 2 ns 1/2 (n = 5-8), 4s 2 nd j (n = 4-7), 4s 2 nf j (n = 4-5) and 4s 2 5g j states in 69 Ga and 71 Ga isotopes. Our theoretical calculations are compared with available experimental and other theoretical results from [8,11,12,14,15,[26][27][28][29][30][31][32].…”

Radiative Lifetimes of Rydberg States in Neutral Gallium

“…It is important to know the lifetime of highly excited Rydberg atoms, which is a parameter that can be compared to existing theories in the literature. During the last two decades, the most of researchers have studied the transition probabilities, energy levels, oscillator strengths and lifetimes of excited states belonging to gallium being in group-three elements having a ground state configuration of 4s 2 of 4p [1][2][3][4][5]. Especially, Zheng et al have calculated energy values using fit procedure in gallium atom.…”