Photonuclear reactions of three-nucleon systems

Schadow, W.; Nohadani, O.; Sandhas, W.

doi:10.1103/physrevc.63.044006

Cited by 14 publications

(21 citation statements)

References 54 publications

(162 reference statements)

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“…The 2 H(p, γ) 3 He and 2 H(n, γ) 3 H asymmetries resulting from our calculation and from that of Ref. [26] are compared with existing data in Fig. 25.…”

Section: The Fore-aft Asymmetrymentioning

confidence: 99%

“…The dashed curves are the results of Ref. [26] obtained with the Bonn A potential model [87]. The experimental data are from Ref.…”

Section: Appendix Amentioning

confidence: 99%

“…In Ref. [26], the exchange currents are taken into account using Siegert's theorem, and a different two-body potential model has been used (Bonn A [87]), without any inclusion of three-nucleon forces. As can be seen by inspecting Fig.…”

Section: The 2 H(n γ) 3 H Radiative Capture Reactionmentioning

confidence: 99%

“…In Ref. [26], the meson exchange currents are taken into account using the Siegert's theorem [27]. No three-body currents are considered in these works.…”

Section: Introductionmentioning

confidence: 99%

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Electromagnetic structure of A=2 and 3 nuclei and the nuclear current operator

et al. 2005

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Different models for conserved two-and three-body electromagnetic currents are constructed from two-and three-nucleon interactions, using either meson-exchange mechanisms or minimal substitution in the momentum dependence of these interactions. The connection between these two different schemes is elucidated. A number of low-energy electronuclear observables, including (i) np radiative capture at thermal neutron energies and deuteron photodisintegration at low energies, (ii) nd and pd radiative capture reactions, and (iii) isoscalar and isovector magnetic form factors of 3 H and 3 He, are calculated in order to make a comparative study of these models for the current operator. The realistic Argonne v18 two-nucleon and Urbana IX or Tucson-Melbourne three-nucleon interactions are taken as a case study. For A=3 processes, the bound and continuum wave functions, both below and above deuteron breakup threshold, are obtained with the correlated hyperspherical-harmonics method. Three-body currents give small but significant contributions to some of the polarization observables in the 2 H(p, γ) 3 He process and the 2 H(n, γ) 3 H cross section at thermal neutron energies. It is shown that the use of a current which did not exactly satisfy current conservation with the two-and three-nucleon interactions in the Hamiltonian was responsible for some of the discrepancies reported in previous studies between the experimental and theoretical polarization observables in pd radiative capture.

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“…The 2 H(p, γ) 3 He and 2 H(n, γ) 3 H asymmetries resulting from our calculation and from that of Ref. [26] are compared with existing data in Fig. 25.…”

Section: The Fore-aft Asymmetrymentioning

confidence: 99%

“…The dashed curves are the results of Ref. [26] obtained with the Bonn A potential model [87]. The experimental data are from Ref.…”

Section: Appendix Amentioning

confidence: 99%

Section: The 2 H(n γ) 3 H Radiative Capture Reactionmentioning

confidence: 99%

“…In Ref. [26], the meson exchange currents are taken into account using the Siegert's theorem [27]. No three-body currents are considered in these works.…”

Section: Introductionmentioning

confidence: 99%

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Electromagnetic structure of A=2 and 3 nuclei and the nuclear current operator

et al. 2005

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“…This was taken up again more consistently by Gibson and Lehman [19] treating the 3N bound state and the final 3N continuum on equal footing. More recently the Bonn group [20,21] used more modern NN forces represented in finite rank form. They analyzed quite a few data and pointed out a correlation of a certain cross section peak height with the triton binding energy, an issue which we shall also address but now in the context of 3NF effects.…”

Section: Introductionmentioning

confidence: 99%

Search for three-nucleon force effects in two-body photodisintegration of3He(3H)and in the t

Skibiński¹,

Golak²,

Kamada³

et al. 2003

Phys. Rev. C

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Faddeev calculations have been performed for nucleon-deuteron photodisintegration of 3 He ( 3 H) and proton-deuteron radiative capture. The bulk of the results is based on the AV18 nucleon-nucleon force and the Urbana IX threenucleon force together with explicit exchange currents or applying the Siegert approach. Three-nucleon force effects are predicted for both processes and are qualitatively supported by available data. 21.45.+v, 24.70.+s, 25.10.+s, 25.40.Lw

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Triton Photodisintegration with Effective Field Theory

Sadeghi

Bayegan

2009

Few-Body Syst

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Effective field theory (EFT) has been recently used for the calculation of neutron-deuteron radiative capture at very low energies.We present here the use of EFT to calculate the two-body photodisintegration of the triton, considering the three-body force. The calculated cross section shows sharp rising from threshold to maximum about 0.88 mb at 13 MeV and decreasing slightly to about 0.81 mb at 19 MeV, in agreement with the experimental data. Our results are in good agreement with the experimental data and the other calculations using modern realistic two- and three-nucleon forces, like AV18/UrbanaIX potential.Comment: 10 pages, 5 figures, 2 tables. Major changes, version to appear in Few-Body System

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Photonuclear reactions of three-nucleon systems

Cited by 14 publications

References 54 publications

Electromagnetic structure of A=2 and 3 nuclei and the nuclear current operator

Electromagnetic structure of A=2 and 3 nuclei and the nuclear current operator

Search for three-nucleon force effects in two-body photodisintegration of3He(3H)and in the t

Triton Photodisintegration with Effective Field Theory

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