The Theoretical Cross Section of the Photodisintegration of the Deuteron
Author : I. Halpern
Publisher :
Page : 12 pages
File Size : 36,22 MB
Release : 1949
Category : Deuterons
ISBN :
Author : I. Halpern
Publisher :
Page : 12 pages
File Size : 36,22 MB
Release : 1949
Category : Deuterons
ISBN :
Author : H. Arenhövel
Publisher : Springer Science & Business Media
Page : 189 pages
File Size : 24,57 MB
Release : 2012-12-06
Category : Science
ISBN : 3709167019
More than 50 years ago, in 1934, Chadwick and Goldhaber (ChG 34) published a paper entitled "A 'Nuclear Photo-effect': Disintegration of the Diplon by -y-Rays."l in the introduction: They noted "By analogy with the excitation and ionisation of atoms by light, one might expect that any complex nucleus should be excited or 'ionised', that is, disintegrated, by -y-rays of suitable energy", and furthermore: "Heavy hydrogen was chosen as the element first to be examined, because the diplon has a small mass defect and also because it is the simplest of all nuclear systems and its properties are as important in nuclear theory as the hydrogen is in atomic theory". Almost at the same time, in 1935, the first theoretical paper on the photodisinte gration of the deuteron entitled "Quantum theory of the diplon" by Bethe and Peierls (BeP 35) appeared. It is not without significance that these two papers mark the be ginning of photonuclear physics in general and emphasize in particular the special role the two-body system has played in nuclear physics since then and still plays. A steady flow of experimental and theoretical papers on deuteron photo disintegration and its inverse reaction, n-p capture, shows the continuing interest in this fundamental process (see fig. 1.1).
Author : Troy Soos
Publisher :
Page : 170 pages
File Size : 50,47 MB
Release : 1989
Category :
ISBN :
Author : Elaine Carol Schulte
Publisher :
Page : 266 pages
File Size : 22,91 MB
Release : 2002
Category :
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Author : Brendan David Fox
Publisher :
Page : pages
File Size : 46,7 MB
Release : 1996
Category :
ISBN :
We have measured the absolute $rmsp2H(gamma,p)n$ angular distribution using the Illinois LASA detector at the Saskatchewan Accelerator Laboratory's tagged photon facility. Using 40 to 90 MeV photons, we aimed to measure the differential cross section with a statistical precision of typically 5% in angular bins of $3spcirc$ and energy bins of 2 MeV. Although our measurement achieved this goal, the contribution of systematic errors was larger than anticipated and thus compromised the utility of this result. Without these systematic errors, this measurement (when combined with the world data set) would have provided an extensive experimental data set with an accuracy which was better than the scatter between the various theoretical calculations for the interaction. Refinements to the treatment of the interaction would then have been testable. In particular, because the shape of the angular distribution in this energy regime is sensitive to meson exchange currents, it would have been possible to investigate the methods for incorporating these currents into calculations.
Author : David John George
Publisher :
Page : 232 pages
File Size : 10,76 MB
Release : 1967
Category :
ISBN :
Author :
Publisher :
Page : pages
File Size : 50,84 MB
Release : 2003
Category :
ISBN :
A review of both the data base and current model predictions for the observables of the deuteron photodisintegration reaction, [gamma]d → p{sub n} is presented. Recent cross section and polarization measurements at Jefferson Lab are shown and discussed. A few conclusions are attempted.
Author :
Publisher :
Page : 256 pages
File Size : 42,85 MB
Release : 1999
Category :
ISBN :
The differential cross section for two-body deuteron photodisintegration was measured at photon energies between 0.8 and 4.0 GeV and centerofmass angles [theta]cm =37°, 53°, 70°, and 90° as part of CEBAF experiment E89012. Constituent counting rules predict a scaling of this cross section at asymptotic energies. In previous experiments this scaling has surprisingly been observed at energies between 1.4 and 2.8 GeV at 90°. The results from this experiment are in reasonable agreement with previous measurements at lower energies. The data at 70° and 90° show a constituent counting rule behavior up to 4.0 GeV photon energy. The 37° and 53°g data do not agree with the constituent counting rule prediction. The new data are compared with a variety of theoretical models inspired by quantum chromodynamics (QCD) and traditional hadronic nuclear physics.
Author : Johan Jacob de Swart
Publisher :
Page : 38 pages
File Size : 34,48 MB
Release : 1959
Category : Deuteron reactions
ISBN :
Author : P. T. Debevec
Publisher :
Page : 0 pages
File Size : 34,94 MB
Release : 1991
Category :
ISBN :