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相关论文: Electronic stopping in astrophysical fusion reacti…

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The momentum distribution of the electron in the reaction p+He $\rightarrow$ H + He$^{2+}$ + $e$ is measured for projectile energies $E_p$=300 and 630 keV/u at very small scattering angles of hydrogen. We mainly present two dimensional…

We present an ab initio study of the electronic stopping power of protons in copper over a wide range of proton velocities $v = 0.02-10~\mathrm{a.u.}$ where we take into account non-linear effects. Time-dependent density functional theory…

材料科学 · 物理学 2016-10-12 Edwin E. Quashie , Bidhan C. Saha , Alfredo A. Correa

The Coulomb interaction between the two protons is included in the calculation of proton-deuteron breakup and of three-body electromagnetic disintegration of ${}^3\mathrm{He}$. The hadron dynamics is based on the purely nucleonic…

核理论 · 物理学 2014-11-18 A. Deltuva , A. C. Fonseca , P. U. Sauer

The energy losses at collisions of heavy multiply charged ions with light atoms and polarization losses at moving through the matter have been considered under circumstances the ion charge Z>>1 and the relative colliding velocity v>>1, so…

高能物理 - 唯象学 · 物理学 2007-05-23 V. I. Matveev , S. G. Tolmanov

The $\alpha$-proton Coulomb interaction is included in the description of $\alpha$-deuteron scattering using the screening and renormalization approach in the framework of momentum-space three-particle equations. The technical reliability…

核理论 · 物理学 2008-11-26 A. Deltuva

In this paper we report on our theoretical studies of various aspects of the correlated stopping power of two point-like ions (a dicluster) moving in close but variable vicinity of each other in some metallic target materials the latter…

等离子体物理 · 物理学 2011-02-08 Hrachya B. Nersisyan , Amal K. Das

Electronic stopping cross sections (SCS) of nickel, silicon and nickel-silicon alloys for protons and helium (He) ions are studied in the regime of medium and low energy ion scattering, i.e., for ion energies in the range from 500 eV to 200…

We study electron loss from a hydrogen-like highly charged ion by the impact of equivelocity electrons and protons and also in collisions with hydrogen and helium. The collision velocity $v$ varies between $v_{min}$ and $v_{max}$, where…

原子物理 · 物理学 2018-03-14 K. N. Lyashchenko , O. Yu. Andreev , A. B. Voitkiv

Using the quantum molecular dynamics model, we aim to investigate the emis- sion of light complex particles, and degree of stopping reached in heavy-ion colli- sions. We took incident energies between 50 and 1000 MeV/nucleon. In addition,…

核理论 · 物理学 2014-11-21 Jatinder K. Dhawan , Narinder Dhiman , Aman D. Sood , Rajeev K. Puri

Low-energy nuclear fusion reactions have been described using a dynamical coupled-channels density matrix method, based on the theory of open quantum systems. For the first time, this has been combined with an energy projection method,…

核理论 · 物理学 2022-03-01 Iain Lee , Alexis Diaz-Torres

We assume a triple geometric structure for the electromagnetic nuclear interaction. This nuclear electromagnetism is used to calculate the binding energies of the deuteron and the neutron. The corresponding Pauli quantum wave equation in a…

综合物理 · 物理学 2008-03-06 Gustavo R. Gonzalez-Martin

Recent experiments on the laser-induced resonant annihilation provide a precise measurement of transition energies of antiprotonic helium atoms. Relativistic corrections of an order of $\alpha ^2$ to the pure Coulomb interaction will be…

核理论 · 物理学 2007-05-23 O. I. Kartavtsev

We study mutual ionization in collisions between atomic hydrogen and helium at impact velocities near the electronic threshold for this process (determined by the condition that kinetic energy of an equivelocity free electron is…

原子物理 · 物理学 2015-06-17 S. F. Zhang , X. L. Zhu , A. B. Voitkiv , W. T. Feng , D. L. Guo , Y. Gao , R. T. Zhang , E. L Wang , X. Ma

An approach to achieve nuclear fusion utilizing the formation of high densities of electrons and neutrals is described. The profusion of low energy electrons provides high dynamic electric fields that help reduce the Coulomb barrier in…

等离子体物理 · 物理学 2019-08-30 Alfred Y. Wong , Chun-Ching Shih

We study the effect of virtual Coulomb break-up, commonly known as the dipole polarizability, of the deuteron projectile on the astrophysical fusion reaction 3He(d,p)4He. We use the adiabatic approximation to estimate the potential shift…

核理论 · 物理学 2009-11-10 K. Hagino , M. S. Hussein , A. B. Balantekin

The deuteron fragmentation by fast protons has been studied both near the kinematics of quasi-free proton - proton scattering and far away from it. We have concentrated on the interplay between different reaction mechanisms associated with…

核理论 · 物理学 2009-11-10 N. B. Ladygina , A. V. Shebeko

Energy loss in collisions of charged projectiles with many-electron systems can be dealt with in time-dependent density functional theory by invoking Ehrenfest's theorem for the time evolution of expectation values of observables. We derive…

原子物理 · 物理学 2021-09-15 Hans Jürgen Lüdde , Marko Horbatsch , Tom Kirchner

The electronic stopping power of H and He moving through gold is obtained to high accuracy using time-evolving density-functional theory, thereby bringing usual first-principles accuracies into this kind of strongly coupled, continuum…

材料科学 · 物理学 2012-06-26 M. Ahsan Zeb , J. Kohanoff , D. Sanchez-Portal , A. Arnau , J. I. Juaristi , Emilio Artacho

Parton propagation in dense nuclear matter results in elastic, inelastic and coherent multiple soft scattering with the in-medium color charges. Such scattering leads to calculable modifications of the hadron production cross section that…

高能物理 - 唯象学 · 物理学 2015-06-25 Ivan Vitev

Based on the time-dependent density-functional theory, we have derived a rigorous formula for the stopping power of an {\it interacting} electron gas for ions in the limit of low projectile velocities. If dynamical correlation between…

材料科学 · 物理学 2009-11-11 V. U. Nazarov , J. M. Pitarke , C. S. Kim , Y. Takada