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相关论文: Approximate Coulomb distortion effects in (e,e'p) …

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The correction to the Coulomb energy due to virtual production of $e^+e^-$ pairs, which is on the order of one percent of the Coulomb energy at nuclear scales is discussed. The effects of including a pair-production term in the…

核理论 · 物理学 2021-08-25 Thomas Settlemyre , Aldo Bonasera , Hua Zheng

The integrated cross sections of high-energy $e^+e^-$ electroproduction by an electron in an atomic field is studied. Importance of various contributions to these cross sections is discussed. It is shown that the Coulomb corrections are…

核理论 · 物理学 2025-01-28 P. A. Krachkov , A. I. Milstein

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…

核理论 · 物理学 2009-11-11 A. Deltuva , A. C. Fonseca , P. U. Sauer

The purpose of this paper is to explain the discrepancies existing in the literature relative to $e^+e^-$ pair production in peripheral heavy ion collisions at ultra-relativistic energies. A controversial issue is the possible cancellation…

核理论 · 物理学 2009-11-07 A. J. Baltz , F. Gelis , L. McLerran , A. Peshier

The issue of factorization within the context of coincidence quasi-elastic electron scattering is reviewed. Using a relativistic formalism for the entire reaction mechanism and restricting ourselves to the case of plane waves for the…

核理论 · 物理学 2009-10-30 J. A. Caballero , T. W. Donnelly , E. Moya de Guerra , J. M. Udias

In the framework of Glauber-Sitenko model we calculate contribution of Coulomb interaction in cross-section of A(d,p) reaction at high energy and zero angle. It is demonstrated that such effect significantly increases the differential cross…

核理论 · 物理学 2007-12-10 A. P. Kobushkin , Ya. D. Krivenko-Emetov

A general formalism for the calculation of the differential cross section and polarization observables, for the process of deuteron electrodisintegration, is developed in the framework of relativistic impulse approximation. A detailed…

高能物理 - 唯象学 · 物理学 2012-06-06 G. I. Gakh , A. P. Rekalo , Egle Tomasi-Gustafsson

The cross sections for the ($^8$B,$^7$Be-$p$) breakup reaction on $^{58}$Ni and $^{208}$Pb targets at the beam energies of 25.8 MeV and 415 MeV have been calculated within a one-step prior-form distorted-wave Born approximation. The…

核理论 · 物理学 2009-10-31 R. Shyam , I. J. Thompson

A comparison of impulse approximation calculations for the (e,e'p) reaction, based on the Dirac equation and the Schrodinger one is presented. Trivial (kinematics) differences are indicated, as well as how to remove them from the standard…

核理论 · 物理学 2007-05-23 J. M. Udias , Javier R. Vignote , E. Moya de Guerra , A. Escuderos , J. A. Caballero

Scattering of protons of several hundred MeV is a promising new spectroscopic tool for the study of electric dipole strength in nuclei. A case study of 208Pb shows that at very forward angles J^pi = 1- states are strongly populated via…

A relativistic distorted wave impulse approximation model for electron-induced one proton knockout reactions and a Green's function approach to inclusive scattering are developed. Results for (e,e'p) and (e,e') reactions are presented in…

核理论 · 物理学 2007-05-23 Andrea Meucci , Carlotta Giusti , Franco Davide Pacati

The triple differential cross section of $^{208}\rm{Pb}(^6\rm{Li};\alpha,\rm{d})^{208}\rm{Pb}$ elastic Coulomb breakup is calculated using the semiclassical method. We fit the parameters of the Woods-Saxon potential using the experimental…

核理论 · 物理学 2015-03-19 B. F. Irgaziev , Jameel-Un Nabi , Darwish Khan

We present a fully quantum mechanical theory to study the effects of deformation on various reaction observables in the Coulomb breakup of neutron rich exotic medium mass nuclei on heavy targets within the framework of finite range…

核理论 · 物理学 2015-06-18 Shubhchintak , R. Chatterjee

An important ingredient for applications of nuclear physics to e.g. astrophysics or nuclear energy are the cross sections for reactions of neutrons with rare isotopes. Since direct measurements are often not possible, indirect methods like…

核理论 · 物理学 2016-08-03 Ch. Elster , L. Hlophe , V. Eremenko , F. M. Nunes , I. J. Thompson , G. Arbanas , J. E. Escher

Sources of energy errors resulting from the replacement of the physical Coulomb interaction by its long-range $\mathrm{erfc}(\mu r)/r$ approximation are explored. It is demonstrated that the results can be dramatically improved and the…

化学物理 · 物理学 2023-01-31 Andreas Savin , Jacek Karwowski

We show that in quantum dots the physical quantities probed by local tunneling spectroscopies, namely the quasi-particle wavefunctions of interacting electrons, can considerably deviate from their single-particle counterparts as an effect…

强关联电子 · 物理学 2007-05-23 Massimo Rontani , Elisa Molinari

We use the Paris nucleon-antinucleon optical potential for explanation of experimental data in the process $e^+e^- \to p\bar p$ near threshold. It is shown that the cross section and the electromagnetic form factors are very sensitive to…

核理论 · 物理学 2008-11-26 V. F. Dmitriev , A. I. Milstein

High precision cross-section data of the deuteron-proton breakup reaction at 130 MeV deuteron energy are compared with the theoretical predictions obtained with a coupled-channel extension of the CD Bonn potential with virtual Delta-isobar…

We investigate the Coulomb breakup of the two-neutron halo nucleus 6He by extending the framework of the finite range post form distorted wave Born approximation theory introduced earlier for the description of the breakup of one-neutron…

核理论 · 物理学 2009-11-07 R. Chatterjee , P. Banerjee , R. Shyam

A detailed study of the electromagnetic responses for quasielastic $(e,e')$ reactions from nuclear matter is presented within the framework of a relativistic model including momentum dependent scalar and vector mean field potentials in both…

核理论 · 物理学 2020-01-08 S. Cruz-Barrios , J. A. Caballero