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The cross section of a given process fundamentally quantifies the probability for that given process to occur. In the quantum regime of low energies, the cross section can vary strongly with collision energy due to quantum effects. Here, we…

Atomic Physics · Physics 2021-03-10 Ruti Ben-shlomi , Meirav Pinkas , Ziv Meir , Tomas Sikorsky , Or Katz , Nitzan Akerman , Roee Ozeri

We address nonsequential double ionization induced by strong, linearly polarized laser fields of only a few cycles, considering a physical mechanism in which the second electron is dislodged by the inelastic collision of the first electron…

Atomic Physics · Physics 2009-11-10 C. Figueira de Morisson Faria , X. Liu , A. Sanpera , M. Lewenstein

We discuss forward-backward correlations in the mutliplicity of produced particles in heavy ion collisions. We find the Color Glass Condensate generates distinctive predictions for the long range component of this correlation. In…

High Energy Physics - Phenomenology · Physics 2008-11-26 Nestor Armesto , Larry McLerran , Carlos Pajares

Collisions between electrically charged particles and neutral atoms are central for understanding the dynamics of neutral gases and plasmas in a variety of physical situaziones of terrestrial and astronomical interest. Specifically,…

Instrumentation and Methods for Astrophysics · Physics 2015-06-04 D. Vrinceanu , R. Onofrio , H. R. Sadeghpour

Heavy-ion collisions provide the only laboratory tests of relativistic quantum field theory at finite temperature. Understanding these is a necessary step in understanding the origins of our universe. These lectures introduce the subject to…

Nuclear Theory · Physics 2018-02-21 Sourendu Gupta

We present a simple method to calculate the binary collision rate between atoms in near-resonant optical lattices. The method is based on the Monte Carlo wave function simulations and the collision rate is obtained by monitoring the quantum…

Atomic Physics · Physics 2009-11-07 Jyrki Piilo

We report new attractive force between ions that are shielded by degenerate electrons in quantum plasmas. Specifically, we show that the electric potential around an isolated ion has a hard core negative part that resembles the…

Plasma Physics · Physics 2012-08-13 Padma Kant Shukla , Bengt Eliasson

We study ultracold atom-ion collisions in the presence of an external magnetic field. At low collision energy the field can drastically modify the translational motion of the ion, which follows quantized cyclotron orbits. We present a…

Quantum Gases · Physics 2015-05-28 Andrea Simoni , Jean-Michel Launay

Criticality in a fluid of dielectric constant D that exhibits Ising-type behavior is studied as additional electrostatic (i.e., ionic) interactions are turned on. An exploratory perturbative calculation is performed for small ionicity as…

Soft Condensed Matter · Physics 2009-10-31 A. G. Moreira , M. M. Telo da Gama , M. E. Fisher

Future linear colliders plan to collide polarised beams and the planned physics reach requires knowledge of the state of polarisation as precisely as possible. The polarised beams can undergo depolarisation due to various mechanisms. In…

Accelerator Physics · Physics 2017-08-23 I. Bailey , C. Bartels , M. Beckmann , A. Hartin , C. Helebrant , D. Kaefer , J. List , G. Moortgat-Pick

In this note we discuss some observations concerning the possible local parity violation in heavy ion collisions recently announced by the STAR Collaboration. Our results can be summarized as follows (i) the measured correlations for same…

Nuclear Theory · Physics 2013-05-29 Adam Bzdak , Volker Koch , Jinfeng Liao

A recently proposed classical-trajectory dynamical screening model for the description of multiple ionization and capture during ion-water molecule collisions is extended to incorporate dynamical screening on both the multi-center target…

Atomic Physics · Physics 2020-07-22 Alba Jorge , Marko Horbatsch , Tom Kirchner

The microscopic theory of chemical reactions is based on transition state theory, where atoms or ions transfer classically over an energy barrier, as electrons maintain their ground state. Electron transfer is fundamentally different and…

When a particle contacts a surface of another material, it is commonly believed that the particle acquires an impact charge that scales inversely with its pre-impact charge and whose polarity is set by the materials. We show that this…

Soft Condensed Matter · Physics 2026-03-02 Simon Jantač , Holger Grosshans

By applying a Bayesian model-to-data analysis, we estimate the temperature and momentum dependence of the heavy quark diffusion coefficient in an improved Langevin framework. The posterior range of the diffusion coefficient is obtained by…

Nuclear Theory · Physics 2018-01-31 Yingru Xu , Marlene Nahrgang , Shanshan Cao , Jonah E. Bernhard , Steffen A. Bass

We review the charged particle and photon multiplicity, and transverse energy production in heavy-ion collisions starting from few GeV to TeV energies. The experimental results of pseudorapidity distribution of charged particles and photons…

Nuclear Experiment · Physics 2015-04-01 Raghunath Sahoo , Aditya Nath Mishra , Nirbhay K. Behera , Basanta K. Nandi

The precise reconstruction of jet transverse momenta in heavy-ion collisions is a challenging task. A major obstacle is the large number of (mainly) low-$p_{\rm T}$ particles overlaying the jets. Strong region-to-region fluctuations of this…

Nuclear Experiment · Physics 2019-06-26 Rüdiger Haake , Constantin Loizides

Magnetic fields play a role in the dynamics of many astrophysical processes, but they are hard to detect. In a partially ionized plasma, a magnetic field works directly on the ionized medium but not on the neutral medium, which gives rise…

Solar and Stellar Astrophysics · Physics 2020-06-24 Boy Lankhaar , Wouter Vlemmings

Energy dependence of space-time parameters of pion emission region at freeze-out is studied for collisions of various ions and for all experimentally available energies. The using of femtoscopic radii scaled on the averaged radius of…

Nuclear Experiment · Physics 2016-06-22 V. A. Okorokov

The ratio of (pseudo)rapidity density of transverse energy and the (pseudo)rapidity density of charged particles, which is a measure of the mean transverse energy per particle, is an important observable in high energy heavy-ion collisions,…

High Energy Physics - Phenomenology · Physics 2018-03-06 Swatantra Kumar Tiwari , Raghunath Sahoo
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