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The introduction of femto-chemistry has made it a primary goal to follow the nuclear and electronic evolution of a molecule in time and space as it undergoes a chemical reaction. Using Coulomb Explosion Imaging we have shot the first…

Experimental studies of meson production through two-photon fusion in inelastic electron-nucleus scattering is now under way. A high-energy photon radiated by the incident electron is fused with a soft photon radiated by the nucleus. The…

Nuclear Theory · Physics 2013-05-29 Göran Fäldt

Anisotropic flow can offer significant information of evolution dynamics in heavy-ion collisions. A systematic study of the directed flow $v_1$ and elliptic flow $v_2$ of hard photons and free nucleons is performed for $^{40}$Ca+$^{40}$Ca…

Nuclear Theory · Physics 2020-10-13 S. S. Wang , Y. G. Ma , X. G. Cao , D. Q. Fang , C. W. Ma

Dissipative relativistic fluid-dynamical descriptions of the extended fireball formed in high-energy heavy-ion collisions are quite successful, yet require a prescription for converting the fluid into particles. We present arguments in…

Nuclear Theory · Physics 2015-06-02 Nicolas Borghini , Steffen Feld , Christian Lang

The pseudorapidity density and anisotropic flow of charged-particles provide fundamental information about global variables and correlations in heavy-ion collisions. The pseudorapidity density is related to the energy available for particle…

Nuclear Experiment · Physics 2019-08-13 Kristjan Gulbrandsen

The electric field governing the dynamics of space charge produced by high intensity femtosecond laser pulses focused on a copper surface is investigated by time-resolved low-energy-electron-scattering. The pump-probe experiment has a…

Materials Science · Physics 2009-11-13 C. Cirelli , M. Hengsberger , A. Dolocan , H. Over , J. Osterwalder , T. Greber

Ionization is one of the most fundamental processes in intense laser-matter interaction. It is extremely efficient for clusters in laser fields and often leads to surprisingly high charge states at moderate laser intensities. Here we reveal…

Plasma Physics · Physics 2023-09-26 Xiaohui Gao

Coupled electron-nuclear oscillations in antiferromagnetics with anisotropy of "light plane" type in the strong external magnetic field are under consideration. The new mode \epsilon_{2k} of these coupled oscillations is obtained for…

Statistical Mechanics · Physics 2007-05-23 V. L. Marchenko , A. M. Savchenko

State-selected Coulomb-crystallized molecular ions were employed for the first time in ion-molecule reaction studies using the prototypical charge-transfer process $\mathrm{N_2^++N_2\rightarrow N_2+N_2^+}$ as an example. By preparing the…

Chemical Physics · Physics 2015-06-05 Xin Tong , Tibor Nagy , Juvenal Yosa Reyes , Matthias Germann , Markus Meuwly , Stefan Willitsch

During the fission process, the nucleus deforms and elongates up to the two fragments inception and their final separation at scission deformation. The evolution of the nucleus energy with deformation is determined by the macroscopic…

We study high-order harmonic generation in aligned molecules close to the ionization threshold. Two distinct contributions to the harmonic signal are observed, which show very different responses to molecular alignment and ellipticity of…

Atomic Physics · Physics 2011-09-16 H. Soifer , P. Botheron , D. Shafir , A. Diner , O. Raz , B. D. Bruner , Y. Mairesse , B. Pons , N. Dudovich

Charge and spin density waves are highly correlated electron systems that can transport an electric current. A model is discussed in which a field E induces the creation, by quantum tunneling, of pairs of oppositely charged solitons and…

Superconductivity · Physics 2012-08-27 John H Miller,

In this work we study the single ionization of hydrogen and helium by the impact of a punctual Coulomb projectile. To interpretate the cross section we introduce a series of Pad\'{e} approximant. The nodes of the denominator of the Pad\'{e}…

Atomic Physics · Physics 2020-11-23 J. E. Miraglia

Black phosphorus has attracted great research interest due to its numerous applications in electronic devices, optoelectronic devices, energy storages and so on. Compared with the majority of two-dimensional materials, black phosphorus…

Mesoscale and Nanoscale Physics · Physics 2019-10-02 Zhen Tian , Yu Gan , Taiming Zhang , Binbin Wang , Hengxing Ji , Yexin Feng , Jiamin Xue

A simple, semi-analytical model is proposed for non-relativistic Coulomb explosion of a uniformly charged spheroid. This model allows us to derive the time-dependent particle energy distributions. Simple expressions are also given for the…

An expansion of energy characteristics of wide thin slab of thickness L in power of 1/L is constructed using the free-electron approximation and the model of a potential well of finite depth. Accuracy of results in each order of the…

Mesoscale and Nanoscale Physics · Physics 2009-11-10 V. V. Pogosov , V. P. Kurbatsky , E. V. Vasyutin

Anisotropies in the final state of heavy-ion collisions carry information on the creation, expansion and evolution of the quark-gluon plasma. Currently, there is an abundance of studies on azimuthal anisotropies in comparison to…

High Energy Physics - Phenomenology · Physics 2019-08-23 Meera Machado

A narrow elliptic ring containing an electron threaded by a magnetic field B is studied. When the ring is highly flattened, the increase of B would lead to a big energy gap between the ground and excited states, and therefore lead to a…

Other Condensed Matter · Physics 2007-05-23 Shuping Situ , Yanzhang He , Chengguang Bao

We propose a new way of quick and very efficient acceleration of protons and/or electrons in relativistic bulk flows. The new mechanism takes advantage of conversion of particles from the charged state (protons or electrons/positrons) into…

Astrophysics · Physics 2009-11-07 E. V. Derishev , F. A. Aharonian , V. V. Kocharovsky , Vl. V. Kocharovsky

To measure and control the electron motion in atoms and molecules by the strong laser field on the attosecond time scale is one of the research frontiers of atomic and molecular photophysics. It involves many new phenomena and processes and…

Atomic Physics · Physics 2022-03-30 Chao Chen , Jiayin Che , Shang Wang , Guoguo Xin , Yanjun Chen