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Controlling interactions between cold molecules using external fields can elucidate the role of quantum mechanics in molecular collisions. We create a new experimental platform in which ultracold rubidium atoms and cold ammonia molecules…

Atomic Physics · Physics 2011-05-24 L. P. Parazzoli , N. J. Fitch , P. S. Zuchowski , J. M. Hutson , H. J. Lewandowski

We present a simple method to include the effects of diffraction into the description of a light-atomic ensemble quantum interface in the context of collective variables. Carrying out a scattering calculation we single out the purely…

Atomic Physics · Physics 2009-11-10 J. H. Mueller , P. Petrov , D. Oblak , C. L. Garrido Alzar , S. R. de Echaniz , E. S. Polzik

One of the most severe limitations in high-intensity particle colliders is the beam-beam interaction, i.e. the perturbation of the beams as they cross the opposing beams. This introduction to beam-beam effects concentrates on a description…

Accelerator Physics · Physics 2016-01-21 W. Herr , T. Pieloni

If calculated in the standard way, the cross section for the collision of two unstable particles turns out to diverge. This is because this cross section is actually proportional to the size of the colliding beams. The effect is called the…

High Energy Physics - Phenomenology · Physics 2015-07-27 Chris Dams , Ronald Kleiss

We show that for collisions of electrons with a high-intensity laser, discrete photon emissions introduce a transverse beam spread which is distinct from that due to classical (or beam shape) effects. Via numerical simulations, we show that…

High Energy Physics - Phenomenology · Physics 2014-08-06 D. G. Green , C. N. Harvey

This paper is a simulation based investigation of the effect of elastic collisions and effectively elastic-like excitation collisions between electrons and background neutrals on the dynamics of a cylindrically trapped electron cloud that…

Plasma Physics · Physics 2016-11-23 Meghraj Sengupta , Rajaraman Ganesh

Initial geometrical distribution and fluctuation can affect the collective expansion in relativistic heavy-ion collisions. This effect may be more evident in small system (such as B + B) than in large one (Pb + Pb). This work presents the…

Nuclear Theory · Physics 2020-03-24 S. Zhang , Y. G. Ma , G. L. Ma , J. H. Chen , Q. Y. Shou , W. B. He , C. Zhong

We review field theoretical studies dedicated to understanding the effects of electron-electron interaction in graphene, which is characterized by gapless bands, strong electron-electron interactions, and emerging Lorentz invariance deep in…

High Energy Physics - Theory · Physics 2023-05-30 A. V. Kotikov

We calculate the differences between reaction and interaction cross sections in the collisions of relativistic light ions with $\text{A}<40$ in the framework of Glauber theory. Although, in the optical approximation of Glauber theory these…

Nuclear Theory · Physics 2013-02-21 I. S. Novikov , Yu. Shabelski

We consider inelastic collisions between relativistic electrons and atomic targets assisted by a low-frequency laser field in the case when this field is still much weaker than the typical internal fields in the target. Concentrating on…

Atomic Physics · Physics 2015-05-13 A. B. Voitkiv , B. Najjari , J. Ullrich

We present an approach which allows the consistent treatment of bound states in the context of the dc conductivity in dense partially ionized noble gas plasmas. Besides electron-ion and electron-electron collisions, further collision…

Plasma Physics · Physics 2017-08-02 Sebastian Rosmej , Heidi Reinholz , Gerd Röpke

The features of heavy ion collisions that suggest the relevance of collective dynamics, as opposed to mere superpositions of nucleon-nucleon or even parton-parton collisions, are reviewed. The surprise of these studies is that bulk…

Nuclear Experiment · Physics 2009-11-10 Peter Steinberg

A brief review of the phenomenological studies in the field of heavy ion collisions based on the Color Glass Condensate theory and, in particular, of those relying in the use of the BK equation including running coupling effects is…

High Energy Physics - Phenomenology · Physics 2011-07-29 Javier L Albacete

We consider trasfer-ionization in collisions of fast (3.6 -- 11 MeV/u) protons, alpha-particles and lithium nuclei with helium atoms. There are just a few basic mechanisms contributing to this process which can be grouped into correlated…

Atomic Physics · Physics 2015-06-05 A. B. Voitkiv , X. Ma

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…

Nuclear Theory · Physics 2009-10-28 T. D. Shoppa , M. Jeng , S. E. Koonin , K. Langanke , R. Seki

The interpretation of the new effect of the superfluidity in reactions with small number of particles is discussed in a simple model where the exact solution is accessible. It is find that the fluctuations of observable with the gauge angle…

Nuclear Theory · Physics 2017-12-06 Guillaume Scamps , Yukio Hashimoto

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…

Quantum Physics · Physics 2015-05-28 V. I. Matveev , D. N. Makarov , Kh. Yu. Rakhimov

I give a brief overview of the science cases of the Electron-Ion Collider (EIC) with a particular emphasis on the connections to the physics of ultrarelativistic heavy-ion collisions.

High Energy Physics - Phenomenology · Physics 2021-02-03 Yoshitaka Hatta

Accurate evaluation of the $\mathcal{P}$,$\mathcal{T}$-odd Faraday effect (rotation of the polarization plane for the light propagating through a medium in presence of an external electric field) is presented. This effect can arise only due…

Atomic Physics · Physics 2019-06-05 D. V. Chubukov , L. V. Skripnikov , L. N. Labzowsky , V. N. Kutuzov , S. D. Chekhovskoi

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