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Cold chemical reactions between laser-cooled Ca^+ ions and Rb atoms were studied in an ion-atom hybrid trap. Reaction rate constants were determined in the range of collision energies <E_{coll}>/k_B = 20 mK-20 K. The lowest energies were…

We discuss a low energy $e^+e^-$ collider for production of the not yet observed ($\mu^+\mu^-$) bound system (dimuonium). Collider with large crossing angle for $e^+e^-$ beams intersection produces dimuonium with non-zero momentum,…

加速器物理 · 物理学 2018-08-01 A. Bogomyagkov , V. Druzhinin , E. Levichev , A. Milstein , S. Sinyatkin

We present results of simulations of light-nuclei production in Au+Au collisions at collision energy of $\sqrt{s_{NN}}=$ 3 GeV within updated Three-fluid Hydrodynamics-based Event Simulator Extended by UrQMD (Ultra-relativistic Quantum…

核理论 · 物理学 2024-02-02 M. Kozhevnikova , Yu. B. Ivanov

Previous results indicated that high $p_T$ particle suppression in Au+Au interactions is a final state effect, since R$_{dA}$ ratios were compatible with unity, albeit within large experimental errors. It is important to test this…

核实验 · 物理学 2019-08-13 Ondrej Chvala

In a recent experiment by Schaetz group \cite{weckesser2021}, the quantum $s$-wave regime has been attained for alkali and alkaline-earth atom-ion combination (Li-Ba$^+$). We investigate possible outcomes from interaction of this ion-atom…

原子物理 · 物理学 2023-05-10 D. Sardar , S. Naskar

In conventional nuclear experiments a beam of accelerated nuclei collides with a target nucleus that is surrounded by other nuclei in a molecule, in condensed matter, or in a plasma environment. It is shown that for low collision energies…

核理论 · 物理学 2007-05-23 M. Yu. Kuchiev , B. L. Altshuler , V. V. Flambaum

The reaction rate of the nuclear fusion d+Li6 ----> Be8*(2+,0) is estimated in the case where the nuclei are confined to each other by a muon. For the description of nuclear transitions, a method which is analogous to the Linear Combination…

核理论 · 物理学 2009-10-28 S. A. Rakityansky , S. A. Sofianos , V. B. Belyaev , V. I. Korobov

We study theoretically interaction potentials and low energy collisions between different alkali atoms and alkali ions. Specifically, we consider systems like X + Y$^{+}$, where X(Y$^{+})$ is either Li(Cs$^+$) or Cs(Li$^+$), Na(Cs$^+$) or…

原子物理 · 物理学 2016-09-13 Arpita Rakshit , Chedli Ghanmi , Hamid Berriche , Bimalendu Deb

In heavy-ion collisions, understanding how light nuclei species are produced can provide insight into the nature of hadronic interactions in extreme conditions. It can also shed light on understanding the matter-antimatter asymmetry and…

高能物理 - 唯象学 · 物理学 2023-12-01 Yoshini Bailung , Neha Shah , Ankhi Roy

New measurements of the neutron-neutron quasifree scattering cross section in neutron-deuteron breakup at an incident neutron energy of 10.0 MeV are reported. The experiment setup was optimized to evaluate the technique for determining the…

We calculate the second-order corrections to the atomic energy level shifts in ordinary and muonic deuterium due to virtual excitations of the deuteron which are important for ongoing and planned precise experiments in these systems. For…

核理论 · 物理学 2009-10-22 Yang Lu , R. Rosenfelder

H3+ and the deuterated isotopomers are thought to play an important role in interstellar chemistry. The partition functions of H3+, D2H+ and D3+ are calculated to a temperature of 800 K by explicitly summing the ab initio determined…

天体物理学 · 物理学 2009-11-10 Jayesh Ramanlal , Jonathan Tennyson

A systematic QED treatment of electron correlation is presented for ions along the lithium isoelectronic sequence. We start with the zeroth-order approximation that accounts for a part of the electron-electron interaction by a local model…

原子物理 · 物理学 2009-11-13 V. A. Yerokhin , A. N. Artemyev , V. M. Shabaev

This study quantifies the impact of nuclear de-excitation on correlations in multi-nucleon transfer (MNT) reactions. To bridge the gap between initial collision dynamics and final experimental observables, we introduce a hybrid…

核理论 · 物理学 2026-04-14 Y. C. Yang , D. D. Zhang , D. Vretenar , B. Li , T. Nikšić , P. W. Zhao , J. Meng

We calculate the isotope independent Li$^+$-Li potential energy curves for the electronic ground and first excited states. Scattering phase shifts and total scattering cross section for the $^7$Li$^+$-$^7$Li collision are calculated with…

原子物理 · 物理学 2020-05-20 A. Pandey , M. Niranjan , N. Joshi , S. A. Rangwala , R. Vexiau , O. Dulieu

New calculations of the time evolution and isotopic composition for a network of nuclear reactions breathe new life into an old idea in nuclear fusion, burning solid room temperature lithium-6 deuteride ($^6$LiD) with neutrons. Modern-day…

等离子体物理 · 物理学 2026-02-05 Lorenzo Fortunato , Andres Felipe Lopez Loaiza , Giulio Albertin , Enrico Fragiacomo

In high energy nucleus-nucleus collisions, it is difficult to measure the contributions of resonance strong decay and weak decay to the final measured hadrons as well as the corresponding effects on some physical observables. To provide a…

高能物理 - 唯象学 · 物理学 2019-02-22 Ning Yu , Xiaofeng Luo

For the lithium dimer we calculate cross sections for absorption of radiation from the vibrational-rotational levels of the ground X [singlet Sigma g +] electronic state to the vibrational levels and continua of the excited A [singlet Sigma…

原子物理 · 物理学 2007-05-23 H. -K. Chung , K. Kirby , J. F. Babb

Rate coefficients for inelastic collisions between Li and H atoms covering all transitions between the asymptotic states Li(2s,2p,3s,3p,3d,4s,4p,4d,4f)+H(1s) and Li^+ +H^- are presented for the temperature range 2000-8000 K based on recent…

天体物理学 · 物理学 2009-11-10 P. S. Barklem , A. K. Belyaev , M. Asplund

It is shown that the atom-molecule collision problem in the presence of an external electric field can be solved using the total angular momentum representation in the body-fixed coordinated frame, leading to a computationally efficient…

化学物理 · 物理学 2012-09-17 T. V. Tscherbul