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The polarization observables in the elastic scattering of polarized deuterons on a polarized hydrogen target, with measurement of the recoil proton polarization, are considered. The observables are calculated in the one-neutron exchange…

High Energy Physics - Phenomenology · Physics 2007-05-23 A. P. Kobushkin , A. I. Syamtomov , C. F. Perdrisat , V. Punjabi

We present a model to describe the emission of two protons in electron scattering experiments. The process is induced by one-body electromagnetic operators acting together with short-range correlations, and by two-body Delta currents. The…

Nuclear Theory · Physics 2007-05-23 Marta Anguiano , Giampaolo Co' , Antonio M. Lallena

Line scattering polarization can be strongly affected by Rayleigh scattering by neutral hydrogen and Thompson scattering by free electrons. Often a continuum depolarization results, but the Doppler redistribution produced by the continuum…

Solar and Stellar Astrophysics · Physics 2015-06-18 T. del Pino Alemán , R. Manso Sainz , J. Trujillo Bueno

The polarization degrees-of-freedom in electronuclear two-nucleon knockout reactions are discussed. Model calculations for the unpolarized $^{16}$O(e,e$'$pp) cross sections at ($\mid \vec{q} \mid$,$\omega$)=(210 MeV,300 MeV/c) are compared…

Nuclear Theory · Physics 2016-09-08 J. Ryckebusch , D. Debruyne , W. Van Nespen

Beam polarization at e^+e^- linear colliders will be a powerful tool for high precision analyses. In this paper we summarize the polarization-related results for Higgs and electroweak physics, QCD, Supersymmetry and alternative theories…

High Energy Physics - Phenomenology · Physics 2011-01-13 Gudrid Moortgat--Pick

The polarization of bremsstrahlung photon in the processes $ee^\pm\to (e\gamma)e^\pm$, and $ep\to (e\gamma)p$ is calculated for peripheral kinematics, in the high energy limit where the cross section does not decrease with the incident…

High Energy Physics - Phenomenology · Physics 2009-04-22 S. Bakmaev , Yu. M. Bystritskiy , E. A. Kuraev , E. Tomasi-Gustafsson

Measurements of polarized electron-nucleon scattering can be realized at the TESLA linear collider facility with projected luminosities that are about two orders of magnitude higher than those expected of other experiments at comparable…

A theoretical investigation of the radiative capture of an electron into a bound state of heavy, hydrogen-like ion is presented. Special attention is paid to the question of how the linear polarization of the emitted radiation is affected…

Atomic Physics · Physics 2015-05-28 A. Surzhykov , A. N. Artemyev , V. A. Yerokhin

The formulation of the Gerasimov-Drell-Hearn sum rule is revisited, showing its connection with other sum rules occurring in electron scattering and discussing the problem of its saturation, both from the theoretical and experimental point…

Nuclear Theory · Physics 2017-08-23 M. M. Giannini

A unified presentation is given on the use of dispersion relations in the real and virtual Compton scattering processes off the nucleon. The way in which dispersion relations for Compton scattering amplitudes establish connections between…

High Energy Physics - Phenomenology · Physics 2010-04-06 D. Drechsel , B. Pasquini , M. Vanderhaeghen

A general theoretical framework is developed for interpreting spectropolarimetric observations of optically thin emission line scattering from small dust particles. Spatially integrated and spatially resolved line profiles of both scattered…

Astrophysics · Physics 2009-10-22 W. J. Henney

Photon-photon interactions, as described by the standard Heisenberg-Euler interaction, can transform plane polarization of the CMB into circular polarization, in the period right after last scattering. We estimate the standard deviation of…

Cosmology and Nongalactic Astrophysics · Physics 2014-12-09 R. F. Sawyer

Beam polarisation is an integral part of the physics case of future Linear Colliders. In this contribution, important examples from Higgs coupling measurements, top and electroweak physics at high energies, the Z pole program as well as…

High Energy Physics - Experiment · Physics 2021-02-10 Jenny List

We have used the convergent close-coupling method and a unitarized first-order many-body theory to calculate integral cross sections for elastic scattering and momentum transfer, for excitation of the 5d^2 ^1S, 6s6p^1P_1, 6s7p^1P_1,…

Atomic Physics · Physics 2009-10-31 D. V. Fursa , S. Trajmar , I. Bray , I. Kanik , G. Csanak , R. E. H. Clark , J. Abdallah

We show how the semiclassical formulas for radiation emission of Baier, Katkov and Strakhovenko for arbitrary initial and final spins of the electron and arbitrary polarization of the emitted photon can be rewritten in a form which…

High Energy Physics - Phenomenology · Physics 2019-12-11 T. N. Wistisen , A. Di Piazza

The utility of polarized electron beams for precision electroweak studies is described. Parity violating Moller scattering asymmetries in e-e- --> e-e- are discussed. Effects of electroweak radiative corrections and the running…

High Energy Physics - Phenomenology · Physics 2015-06-25 Andrzej Czarnecki , William J. Marciano

The leading-order electron-atom bremsstrahlung is investigated within the rigorous relativistic approach based on the partial-wave representation of the Dirac wave functions in the external atomic field. Approximating the atomic target by…

Atomic Physics · Physics 2015-05-20 Vladimir A. Yerokhin , Andrey Surzhykov

We employ the impulse approximation for description of positronium-atom scattering. Our analysis and calculations of Ps-Kr and Ps-Ar collisions provide theoretical explanation of the similarity between the cross sections for positronium…

Atomic Physics · Physics 2015-01-09 I. I. Fabrikant , G. F. Gribakin

The experimental observables for the elastic reaction induced by protons on electrons are calculated in the Born approximation. Model independent expressions are derived for the differential cross section and polarization observables.…

Nuclear Theory · Physics 2011-09-06 G. I. Gakh , A. Dbeyssi , D. Marchand , E. Tomasi Gustafsson , V. V. Bytev

The polarization dynamics of electrons including multiple nonlinear Compton scattering during the interaction of a circularly-polarized ultraintense laser pulse with a counterpropagating ultrarelativistic electron beam is investigated.…

Plasma Physics · Physics 2023-07-10 Yan-Fei Li , Yue-Yue Chen , K. Z. Hatsagortsyan , A. Di Piazza , M. Tamburini , C. H. Keitel