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We study the process of single ionization of Li in collisions with H$^+$ and O$^{8+}$ projectile ions at 6 MeV and 1.5-MeV/amu impact energies, respectively. Using the frameworks of the independent-electron model and the impact parameter…

原子物理 · 物理学 2015-01-16 L. Gulyás , S. Egri , T. Kirchner

A theoretical study was conducted on the impact of electron and positron impact ionization of excited hydrogen atoms that were in the 3s state; this study was conducted within the First-Born Approximation (FBA), which provides an analytical…

原子物理 · 物理学 2025-12-05 Fahadul Islam , Sunil Dhar

We found, within the plane-wave first Born approximation (PWFBA), that the proton-helium fully differential cross section (FDCS) for transfer excitation agrees well with the experimental one at the proton energy Ep = 300 keV and small…

原子物理 · 物理学 2015-06-05 Salim Houamer , Yuri V. Popov

In this work we present fully differential cross sections (FDCSs) calculations using post and prior version of CDW--EIS theory for helium single ionization by 100 MeV C$^{6+}$ amu$^{-1}$ and 3.6 MeV amu$^{-1}$ Au$^{24+}$ and Au$^{53+}$…

原子物理 · 物理学 2009-11-11 M F Ciappina , W R Cravero

This investigation is a rigorous theoretical study of the Single Differential Cross Section (SDCS) for the ionization of hydrogen in the 3s state by electron impact computed by means of the First-Born Approximation. The transition matrix…

原子物理 · 物理学 2025-11-11 Fahadul Islam , Sunil Dhar

Scattering angle differential cross sections for the He+ + He single electron capture process are studied using plane wave Born approximation models for projectile energies between 30 keV and 1.89 MeV. Within this simplistic framework, we…

原子物理 · 物理学 2019-02-01 A. L. Harris , A. Plumadore

Using the COLTRIMStechnique, scattering angle differential cross sections for single and double electron capture in collisions of protons and $He\sp{1,2+}$ projectiles with helium atoms for incident energies of $60-630 keV/u$ are measured.…

Elemental fragmentation cross sections (EFCSs) of stable and unstable nuclides have been investigated with various projectile-target combinations at a wide range of incident energies. These data are critical to constrain and develop the…

The absolute electron capture cross sections for single and double charge exchanges between the highly charged ions O6+ and CO2, CH4, H2, N2, the dominant collision processes in the solar wind, have been measured in the energy from 7 keV*q…

原子物理 · 物理学 2021-01-25 J. Han , L. Wei , B. Wang , B. Ren , W. Yu , Y. Zhang , Y. Zou , L. Chen , J. Xiao , B. Wei

Electromagnetic interactions of protons and alpha particles are modeled in a form that is suitable for Monte Carlo simulation of the transport of charged particles. The differential cross section (DCS) for elastic collisions with neutral…

核理论 · 物理学 2023-11-13 Francesc Salvat , Carlos Heredia

In order to study 4-body atomic collisions such as excitation-ionization, transfer with target excitation, and double electron capture, the calculation of a nine-dimensional numerical integral is often required. This calculation can become…

计算物理 · 物理学 2013-05-09 A. L. Harris

The Cold-target recoil-ion momentum spectroscopy (COLTRIMS) has been employed to study the single-electron capture processes in collisions of N3+ ions with He atoms at an impact energy of 30 keV. The relative differential cross sections for…

原子物理 · 物理学 2019-05-16 J. W. Xua , X. L. Zhu , W. T. Feng , D. M. Zhao , D. L. Guo , Y. Gao , S. F. Zhang , X Ma

Large discrepancies have been observed between measured Electromagnetic Dissociation(ED) cross sections and the predictions of the semiclassical Weiz\"acker-Williams-Fermi(WWF) method. In this paper, the validity of the semiclassical…

核理论 · 物理学 2016-09-08 C. J. Benesh , J. L. Friar

Core-excitation effects in the scattering of two-body halo nuclei have been investigated in previous works. In particular, these effects have been found to affect in a significant way the breakup cross sections of neutron-halo nuclei with a…

核理论 · 物理学 2017-04-26 R. de Diego , R. Crespo , A. M. Moro

Radiative double electron capture (RDEC), the one-step process occurring in ion-atom collisions, has been investigated for bare fluorine ions colliding with carbon. RDEC is completed when two target electrons are captured to a bound state…

原子物理 · 物理学 2016-10-14 Tamer Elkafrawy , Anna Simon , John A. Tanis , Andrzej Warczak

The multiple electron loss of heavy projectiles in fast ion-atom collisions has been studied in the framework of the sudden perturbation approximation. Especially, a model is developed to calculate the cross sections for the loss of any…

The single and multiple electron loss of fast highly charged projectiles in the collisions with neutral molecules are studied within the framework of a nonperturbative approach. The cross sections for single, double, and triple electron…

量子物理 · 物理学 2015-05-28 V. I. Matveev , D. N. Makarov , Kh. Yu. Rakhimov

Proton-proton collisions at energy-frontier facilities produce an intense flux of high-energy light particles, including neutrinos, in the forward direction. At the LHC, these particles are currently being studied with the far-forward…

Recent laboratory experiments have measured fusion cross sections at center-of-mass energies low enough for the effects of atomic and molecular electrons to be important. To extract the cross section for bare nuclei from these data (as…

核理论 · 物理学 2009-10-28 T. D. Shoppa , M. Jeng , S. E. Koonin , K. Langanke , R. Seki

The dynamics of the complete breakup process in an Ortho Ps - He+ system including electron loss to the continuum (ELC) is studied where both the projectile and the target get ionized. The process is essentially a four body problem and the…

原子物理 · 物理学 2015-06-04 D. Ghosh , S. Mukhopadhyay , C. Sinha
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