Deuteron photo-disintegration with polarised photons in the energy range 30–50 MeV

ar X iv : n uc l - ex / 9 80 10 01 v 1 8 J an 1 99 8 Deuteron photo - disintegration with polarised photons in the energy range 30 - 50 MeV

The reaction d(~γ, np) has been studied using the tagged and polarised LADON gamma ray beam at an energy 30− 50 MeV to investigate the existence of narrow dibaryonic resonances recently suggested from the experimental measurements in a different laboratory. The beam was obtained by Compton back-scattering of laser light on the electrons of the storage ring ADONE. Photo-neutron yields were measu...

Einstein-Podolsky-Rosen Correlations in Deuteron Photo- disintegration

Einstein-Podolsky-Rosen correlations have so far been measured only between pairs of photons and between pairs of protons. It is proposed to measure these correlations between the proton and the neutron emerging from the breakup of the deuteron induced by gamma rays near threshold. The feasibility of the experiment is discussed. Polarimeters with substantially higher overall efficiency than the...

Polarization observables in high - energy deuteron photo - disintegration within the Quark - Gluon Strings Model ⋆

Deuteron two-body photodisintegration is analysed within the framework of the Quark-Gluon Strings Model. The model describes fairly well the recent experimental data from TJNAF in the few GeV region. Angular distributions at different γ-energies are presented and the effect of a forward-backward asymmetry is discussed. New results from the QGSM for polarization observables from 1.5 – 6 GeV are ...

PROTON POLARIZATION IN DEUTERON PHOTO - DISINTEGRATION TO E γ > 3 GEV AT θ cm = 90 ◦

Trinucleon Photo Reactions with ∆-Isobar Excitation: Radiative Nucleon-Deuteron Capture and Two-Body Photo Disintegration of the Three-Nucleon Bound State

Radiative nucleon-deuteron capture and photo disintegration of the three-nucleon bound state with two-body final states are described. The description uses nucleon degrees of freedom extended to include the excitation of a single nucleon to a ∆-isobar. The baryonic interaction and the electromagnetic current couple nucleonic states and states with a ∆-isobar. Exact solutions of three-particle s...