English
Related papers

Related papers: Effects of negative energy components in two-body …

200 papers

The differential cross section and the polarization observables for $\Delta $--isobar production in the deuteron electrodisintegration process, $e^-+d\to e^-+\Delta +N$, are calculated in a general formalism based on structure functions.…

High Energy Physics - Phenomenology · Physics 2009-08-05 G. I. Gakh , E. Tomasi-Gustafsson , A. G. Gakh

The study of two body deuteron photo-disintegration is ideal for investigating the transition region from meson exchange to the Quantum Chromo Dynamics (QCD) regime because of its simplicity and amenability to calculation. In the past…

Nuclear Experiment · Physics 2013-01-25 Federico Ronchetti

Photo disintegration of the deuteron and photo pionproduction on the deuteron are described in the region of the $\Delta$-resonance. The two reactions are unitarily coupled. A novel definition of electromagnetic exchange currents in the…

Nuclear Theory · Physics 2007-05-23 K. A. Bugaev , U. Oelfke , P. U. Sauer

Corrections of two-photon exchange to proton and neutron electromagnetic form factors are employed to study the effect of two-photon exchange on the deuteron electromagnetic form factors. Numerical results of the effect are given. It is…

Nuclear Theory · Physics 2009-07-30 Yu Bing Dong , D. Y. Chen

The aim of this work is to investigate the simultaneous influence of two-photon effects in quantum electrodynamics (QED) and logarithmic corrections in quantum chromodynamics (QCD) on certain observable experimental quantities (structure…

High Energy Physics - Phenomenology · Physics 2024-12-31 Ya. D. Krivenko-Emetov , O. S. Shevchuk

The technique of dispersion integration over the mass of composite particle is used to describe the reaction of the deuteron photodisintegration. The influence of the final state interaction (FSI) on the total cross section, calculated with…

Nuclear Theory · Physics 2007-05-23 V. A. Sadovnikova

Photon absorption by a quark in one nucleon followed by its high momentum transfer interaction with a quark in the other may produce two final-state nucleons with high relative momentum. We sum the relevant quark rescattering diagrams, to…

High Energy Physics - Phenomenology · Physics 2009-10-31 Leonid L. Frankfurt , Gerald A. Miller , Misak M. Sargsian , Mark I. Strikman

Following the model independent approach to deuteron photodisintegration with linearly polarized $\gamma-$rays, we show that the measurements of the tensor analyzing powers on aligned deuterons along with the differential cross section…

Nuclear Theory · Physics 2013-05-14 G. Ramachandran , Swarnamala Sirsi , S. P. Shilpashree

Proton-deuteron radiative capture and two- and three-body photodisintegration of 3He at low energy are described using realistic hadronic dynamics and including the Coulomb force. The sensitivity of the observables to the relativistic…

Nuclear Theory · Physics 2010-03-17 A. Deltuva , A. C. Fonseca , P. U. Sauer

For deuteron photo- and electrodisintegration the selection of complete sets of polarization observables is discussed in detail by applying a recently developed new criterion for the check of completeness of a chosen set of observables. The…

Nuclear Theory · Physics 2009-10-31 Hartmuth Arenhoevel , Winfried Leidemann , Edward L. Tomusiak

We evaluate the energy levels of the deuteronium bound system, which consists of a deuteron and an antideuteron, with a special emphasis on states with nonvanishing orbital angular momenta. The excited atomic bound states of deuteronium…

High Energy Physics - Phenomenology · Physics 2025-12-18 G. S. Adkins , U. D. Jentschura

Coherent $\eta$-meson photoproduction on the deuteron has been studied, where the emphasis is on the relative importance of two-body contributions from hadronic rescattering and electromagnetic meson exchange currents besides the impulse…

Nuclear Theory · Physics 2009-11-06 F. Ritz , H. Arenhoevel

We extend the relativistic plane--wave impulse approximation formalism to incorporate a specific class of relativistic interference effects for use in describing inclusive electrodisintegration of $^2$H. The role of these ``exchange'' terms…

Nuclear Theory · Physics 2009-10-22 G. I. Poulis , T. W. Donnelly

The influence of relativistic contributions to elastic electron deuteron scattering is studied systematically at low and intermediate momentum transfers ($Q^2\leq 30$ fm$^{-2}$). In a $(p/M)$-expansion, all leading order relativistic…

Nuclear Theory · Physics 2009-10-31 Hartmuth Arenhoevel , Frank Ritz , Thomas Wilbois

The deuteron form factors are calculated in the framework of the relativistic nucleon-meson dynamics. The relativistic effects change considerably the S- and D-waves of the deuteron, result in the dominating extra component in the deuteron…

Nuclear Theory · Physics 2011-04-15 J. Carbonell , V. A. Karmanov

A covariant field theoretical approach to deep inelastic scattering on the deuteron is presented. The deuteron structure function is calculated in terms of the Bethe-Salpeter amplitude. Numerical calculations for the nucleon contribution…

Nuclear Theory · Physics 2011-07-19 A. Yu. Umnikov , L. P. Kaptari , K. Yu. Kazakov , F. C. Khanna

Within a quasipotential framework a relativistic analysis is presented of the deuteron current. Assuming that the singularities from the nucleon propagators are important, a so-called equal time approximation of the current is constructed.…

Nuclear Theory · Physics 2008-11-26 E. Hummel , J. A. Tjon

Structure functions and polarization observables in elastic scattering of longitudinally polarized electron on polarized deuteron are considered within approximation of one-photon + two-photon exchange. It is shown that contribution of…

We review some recent results for elastic electron deuteron scattering (deuteron form factors) and photodisintegration of the deuteron, with emphasis on the recent high energy data from Jefferson Laboratory (JLab).

Nuclear Theory · Physics 2014-11-18 Franz Gross , R. Gilman

The nuclear effects in the spin-dependent structure functions $g_1^D$ and $b_2^D$ are calculated in the relativistic approach based on the Bethe-Salpeter equation with a realistic meson-exchange potential. The results of calculations are…

High Energy Physics - Phenomenology · Physics 2015-06-25 A. Yu. Umnikov , L. P. Kaptari , K. Yu. Kazakov , F. C. Khanna