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The oxidation of potassium ferrocyanide, K_4Fe(CN)_6, in aqueous solution under fully supported conditions is carried out at interdigitated band and ring electrode arrays, and compared to theoretical models developed to simulate the…

We study binary and the recently discovered process of ternary He-assisted recombination of H3+ ions with electrons in a low temperature afterglow plasma. The experiments are carried out over a broad range of pressures and temperatures of…

The dynamics of charged particle beams interacting with laser beams and material targets in storage rings is presented. Formulas for the radiative damping, quantum excitation and equilibrium parameters of ion and electron beams determined…

Classical Physics · Physics 2007-05-23 E. G. Bessonov

We present state-selected measurements of rotational cooling and excitation rates of CH$^+$ molecular ions by inelastic electron collisions. The experiments are carried out at the Cryogenic Storage Ring, making use of a monoenergetic…

In this Communication, it is shown that models used for describing generation and recombination of electrons and holes lead to disagreements with Maxwell's electrodynamics. Self-consistent expressions, more adequately depicting the actual…

Soft Condensed Matter · Physics 2009-11-10 I. N. Volovichev , G. N. Logvinov , O. Yu. Titov , Yu. G. Gurevich

Leung, Chan & Chu (2004) claimed that a previously neglected reheating effect makes a small but noticeable change to the process of cosmological recombination. We revisit this effect by considering a system consisting of both radiation and…

Astrophysics · Physics 2007-05-23 Wan Yan Wong , Douglas Scott

The effect of ionization and recombination processes on the electrical interactions between a pair of small charged particles in highly collisional plasmas is discussed. In particular, it is shown that these processes suppress the…

Plasma Physics · Physics 2010-10-20 M. Chaudhuri , S. A. Khrapak , G. E. Morfill

We review the current status of recombination and coalescence models that have been successfully applied to describe hadronization in heavy ion collisions at RHIC energies. Basic concepts as well as actual implementations of the idea are…

Nuclear Theory · Physics 2009-11-10 R. J. Fries

In molecular photofragmentation processes by soft X-rays, a number of ionic fragments can be produced, each having a different abundance and correlation with the emitted electron kinetic energy. For investigating these fragmentation…

Atomic Physics · Physics 2007-05-23 G. Pruemper , K. Ueda

We report linear polarization measurements of x rays emitted due to dielectronic recombination into highly charged krypton ions. The ions in the He-like through O-like charge states were populated in an electron beam ion trap with the…

Modeling radiative recombination is crucial to the analysis of photonic energy converters. In this work, a local radiative recombination coefficient is defined and derived based on fluctuational electrodynamics that is applicable to…

Applied Physics · Physics 2024-06-12 Dudong Feng , Shannon K. Yee , Zhuomin M. Zhang

We present multi-configuration Breit-Pauli AUTOSTRUCTURE calculations of distorted-wave photoionization (PI) cross sections, and total and partial final-state resolved radiative recombination (RR) and dielectronic recombination (DR) rate…

Solar and Stellar Astrophysics · Physics 2015-05-27 N. C. Sterling , Michael C. Witthoeft

Highly ionized heavy evaporation residues (ERs) resulting from heavy ion (HI) fusion-evaporation reactions are knocked out from solid targets to rarefied gas of gas-filled recoil separators. In gas, these ERs undergo charge-changing…

Atomic Physics · Physics 2021-09-01 Roman Sagaidak

We have developed an improved recombination calculation of H, HeI, and HeII in the early Universe which involves a line-by-line treatment of each atomic level. We find two major differences compared with previous calculations. Firstly, the…

Astrophysics · Physics 2009-09-25 Sara Seager , Dimitar D. Sasselov , Douglas Scott

The rate coefficients of various isotopic variations of the H2+ + H2 and H3+ + H2 reactions in the 10-250 K temperature range were measured using a cryogenic 22 pole radio frequency ion trap. The processes involving diatomic ions were found…

Solar and Stellar Astrophysics · Physics 2024-12-04 Miguel Jiménez-Redondo , Olli Sipilä , Pavol Jusko , Paola Caselli

We analyze reactive collisions of a single Ba$^+$ ion in contact with an ultracold gas of Rb atoms at low three-body collision energies of 2.2(9) mK$\times k_{\mathrm{B}}$. Mapping out the Ba$^+$ loss rate dependence on the Rb atom density…

Atomic Physics · Physics 2016-09-14 Artjom Krükow , Amir Mohammadi , Arne Härter , Johannes Hecker Denschlag

To further study neutrino oscillation properties a Beta Beam facility has been proposed. Beta decaying ions with high kinetic energy are stored in a storage ring ("Decay Ring") with straight sections to create pure focused (anti) electron…

Accelerator Physics · Physics 2015-05-30 Daniel Christopher Heinrich , Christian Hansen , Antoine Chance

Liquid argon is an excellent medium for detecting particles, given its yields and transport properties of light and charge. The technology of liquid argon time projection chambers has reached its full maturity after four decades of…

High Energy Physics - Experiment · Physics 2024-05-03 Ettore Segreto

In this work we introduce a new expression of the plasma Dielecronic Recombination (DR) rate as a function of the temperature, derived assuming a small deformation of the Maxwell-Boltzmann distribution and containing corrective factors, in…

Atomic Physics · Physics 2007-05-23 Fatima Bachari , Fabrizio Ferro , Giancarlo Maero , Piero Quarati

We show that hadron production in relativistic heavy ion collisions at transverse momenta larger than 2 GeV/c can be explained by the competition of two different hadronization mechanisms. Above 5 GeV/c hadron production can be described by…

Nuclear Theory · Physics 2009-11-10 R. J. Fries , B. Muller , C. Nonaka , S. A. Bass