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The charge asymmetry in the differential cross section of high-energy $\mu^+\mu^-$ photoproduction in the electric field of a heavy atom is obtained. This asymmetry arises due to the Coulomb corrections to the amplitude of the process…

Nuclear Theory · Physics 2014-06-17 E. J. Downie , R. N. Lee , A. I. Milstein , G. Ron

We compute the primary Lund plane density for jets initiated by a massive ($b$) quark to single logarithmic accuracy in Quantum Chromodynamics (QCD). In order to capture mass effects, we consider quasi-collinear factorisation and we include…

High Energy Physics - Phenomenology · Physics 2025-12-22 Andrea Ghira , Simone Marzani , Gregory Soyez

Quantum interference is shown to deliver a means of regulating the diffraction pattern of a thermal atomic beam interacting with two standing wave electric fields. Parameters have been identified to enhance the diffraction probability of…

Atomic Physics · Physics 2009-11-10 Bijoy K. Dey

The nonequilibrium transfer of the energy between electrons of counter-propagating quasi-one-dimensional systems has been perturbatively calculated for edge channels in a two-dimensional system in the integer quantum Hall effect. The…

Mesoscale and Nanoscale Physics · Physics 2012-07-11 M. G. Prokudina , V. S. Khrapai

Coulomb gauge QCD in the first order formalism can be written in terms of a ghost-free, nonlocal action that ensures total color charge conservation via Gauss' law. Making an Ansatz whereby the nonlocal term (the Coulomb kernel) is replaced…

High Energy Physics - Phenomenology · Physics 2011-12-01 Peter Watson , Hugo Reinhardt

We compute the next-to-leading order corrections in $\alpha_s$ to prompt diphoton production in association with a jet at hadron colliders. We use a next-to-leading order general-purpose partonic Monte Carlo event generator that allows the…

High Energy Physics - Phenomenology · Physics 2009-11-10 Vittorio Del Duca , Fabio Maltoni , Zoltan Nagy , Zoltan Trocsanyi

The suppression of the yield of high transverse momentum $p_{T}$ hadrons in heavy-ion collisions, referred to as "jet-quenching", has now developed into a comprehensive science. Jets are now used as probes of a variety of properties of the…

High Energy Physics - Phenomenology · Physics 2009-11-18 Abhijit Majumder

It is shown that direct photons provide a leading twist mechanism for diffractive jet production in which the jets carry away all of the momentum lost by the proton. Two-photon processes are thus expected to asymptotically dominate…

High Energy Physics - Phenomenology · Physics 2011-07-19 Hung Jung Lu , Joseph Milana

The effective interaction of the electron magnetic moment anomaly with the Coulomb field of superheavy nuclei is investigated by taking into account its dynamical screening at small distances. The shift of the electronic levels, caused by…

Atomic Physics · Physics 2019-02-05 Artem Roenko , Konstantin Sveshnikov

Quantum point contacts (QPCs) are commonly employed to capacitively detect the charge state of coupled quantum dots (QD). An indirect back-action of a biased QPC onto a double QD laterally defined in a GaAs/AlGaAs heterostructure is…

Mesoscale and Nanoscale Physics · Physics 2010-07-01 D. Harbusch , D. Taubert , H. P. Tranitz , W. Wegscheider , S. Ludwig

We develop a theory of magneto-oscillations in photoconductivity of multisubband two-dimensional electron systems which takes into account strong Coulomb interaction between electrons. In the presence of a magnetic field oriented…

Mesoscale and Nanoscale Physics · Physics 2012-07-25 Yuriy P. Monarkha

We discuss non-perturbative QCD corrections to jet distributions in hadron collisions, focussing on hadronisation and underlying event contributions. Using soft gluon resummation and Monte-Carlo modelling we show that hadronisation…

High Energy Physics - Phenomenology · Physics 2007-06-22 Matteo Cacciari , Mrinal Dasgupta , Lorenzo Magnea , Gavin Salam

The Coulomb interaction between the two protons is included in the calculation of proton-deuteron elastic scattering, radiative proton-deuteron capture and two-body electromagnetic disintegration of ${}^3\mathrm{He}$. The hadron dynamics is…

Nuclear Theory · Physics 2009-11-11 A. Deltuva , A. C. Fonseca , P. U. Sauer

Within an electric circuit description of extragalactic jets temporal variations of the electric currents are associated with finite collisionless conductivities and consequently magnetic-field aligned electric fields $E_\parallel$. The…

Astrophysics · Physics 2009-11-06 Rüdiger Schopper , Guido Thorsten Birk , Harald Lesch

In an effort to increase spatial and temporal resolution of ultrafast electron diffraction and microscopy, ultra-high brightness photocathodes are actively sought to improve electron beam quality. Beam dynamics codes often approximate the…

Accelerator Physics · Physics 2021-09-01 M. Gordon , S. B. van der Geer , J. Maxson , Y. -K. Kim

Recent results from the ep (electron-proton) collider HERA are presented. Jet production and diffraction type reactions allow tests of predictions of Quantum Chromodynamics (QCD). Jet measurements are used to improve the combined H1-ZEUS…

High Energy Physics - Experiment · Physics 2011-07-12 Igor Rubinskiy

We present a theoretical method to calculate Delbr\"uck scattering amplitudes. Our formalism is based on the exact analytical Dirac-Coulomb Green's function and, therefore, accounts for the interaction of the virtual electron-positron pair…

High Energy Physics - Theory · Physics 2022-01-06 J. Sommerfeldt , V. A. Yerokhin , R. A. Müller , V. A. Zaytsev , A. V. Volotka , A. Surzhykov

In this work, we estimate the effect of photoinduced screening breakdown of the Coulomb potential mediated by plasmons. In contrast to previous studies, we consider the contribution from the divergence of renormalized inverse electron…

Strongly Correlated Electrons · Physics 2018-12-31 Anatoley T. Zheleznyak , Tom Wallace

We consider the photon field between an unusual configuration of infinite parallel plates: a perfectly conducting plate $(\epsilon\to\infty)$ and an infinitely permeable one $\mu\to\infty)$. After quantizing the vector potential in the…

High Energy Physics - Theory · Physics 2008-11-26 M. V. Cougo-Pinto , C. Farina , F. C. Santos. A. C. Santos

The interaction of an electron with a local static charge distribution (e.g., an atom or molecule) is dominated at large distances by the radial 1/r Coulomb potential. The second order effect comes from the non-central electric dipole…

Quantum Physics · Physics 2023-02-08 A. D. Alhaidari , H. Bahlouli