Charge transfer of<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msup><mml:mrow><mml:mi mathvariant="normal">N</mml:mi></mml:mrow><mml:mrow><mml:mn>4</mml:mn><mml:mo>+</mml:mo></mml:mrow></mml:msup></mml:mrow></mml:math>with atomic hydrogen

Zygelman, B.; Ford, Matthew J.; Dalgarno, A.; Gerratt, Joseph; Raimondi, Mario

doi:10.1103/physreva.46.3846

Cited by 106 publications

(81 citation statements)

References 18 publications

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“…It was found that small differences in the quality of the calculated molecular states and the neglect of electron translational factors can lead to large differences in the low energy behavior of the predicted cross section. Recent remeasurement of this system (see Figure IV) confirms our previous results [16] and resolves the discrepancy between the two recent calculations [17,18] …”

Section: Low-energy Ion-atom Collisionssupporting

confidence: 75%

Collisions of highly charged ions with electrons, atoms and surfaces

Havener

Bannister

Folkerts

et al. 1995

Nuclear Instruments and Methods in Physics Research Section B:

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Section: Low-energy Ion-atom Collisionssupporting

confidence: 75%

Collisions of highly charged ions with electrons, atoms and surfaces

Havener

Bannister

Folkerts

et al. 1995

Nuclear Instruments and Methods in Physics Research Section B:

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“…The modification is similar in form to that resulting from the application of the common translation factor (ETF) method [21]. Since the adiabatic description contains first-and secondorder derivatives, it is numerically convenient to make a unitary transformation [18,22] to a diabatic representation. With the diabatic potentials and couplings, the coupled set of secondorder differential equations is solved and matched to the planewave boundary conditions at a large internuclear distance R max to obtain the K matrix.…”

Section: B Qmocc Methodsmentioning

confidence: 96%

“…[17,18], and here only a brief account is presented. The QMOCC method involves the solution of a coupled set of second-order differential equations using the log-derivative method of Johnson [19].…”

Section: B Qmocc Methodsmentioning

confidence: 99%

Cross sections for electron capture in H+-Li(2pσ,π±) collisions

Liu

Wang

et al. 2011

Phys. Rev. A

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State-selective and total single-electron-capture cross sections in collisions of H + with the excited Li * (2p) atom have been investigated by using the full quantum-mechanical molecular orbital close-coupling (QMOCC) method in the energy range 0.001-3 keV/u and by the two-center atomic orbital close-coupling (TC-AOCC) method in the energy range 0.1-100 keV/u. The present results are also compared with data from other sources when available. It is found that the total and partial electron-capture cross sections are sensitive to the initial p-state charge cloud alignment, particularly in the low-energy region.

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“…The quantum mechanical molecular-orbital close-coupling (QMOCC) approach (e.g., Kimura & Lane 1989;Zygelman et al 1992;Wang et al 2004) is the most accurate theoretical method for determining CT rate coefficients at the temperatures of interest. However, given the time-and computationally-intensive nature of such calculations, we have chosen to first render LZ calculations for these systems.…”

Section: Introductionmentioning

confidence: 99%

Atomic data for neutron-capture elements

Sterling

Stancil

2011

A&A

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We present total and final-state resolved charge transfer (CT) rate coefficients for low-charge Ge, Se, Br, Kr, Rb, and Xe ions reacting with neutral hydrogen over the temperature range 10 2 -10 6 K. Each of these elements has been detected in ionized astrophysical nebulae, particularly planetary nebulae. CT rate coefficients are a key ingredient for the ionization equilibrium solutions needed to determine total elemental abundances from those of the observed ions. A multi-channel Landau Zener approach was used to compute rate coefficients for projectile ions with charges q = 2-5, and for singly-charged ions the Demkov approximation was utilized. Our results for five-times ionized species are lower limits, due to the incompleteness of level energies in the NIST database. In addition, we computed rate coefficients for charge transfer ionization reactions between the neutral species of the above six elements and ionized hydrogen. The resulting total and state-resolved CT rate coefficients are tabulated and available at the CDS. In tandem with our concurrent investigations of other important atomic processes in photoionized nebulae, this work will enable robust investigations of neutron-capture element abundances and nucleosynthesis via nebular spectroscopy.

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Charge transfer ofN4+with atomic hydrogen

Cited by 106 publications

References 18 publications

Collisions of highly charged ions with electrons, atoms and surfaces

Collisions of highly charged ions with electrons, atoms and surfaces

Cross sections for electron capture in H+-Li(2pσ,π±) collisions

Atomic data for neutron-capture elements

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