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Radiative capture of polarized deuterons by 6Li and the D-state of 8Be

Publication ,  Journal Article
Williams, JZ; Feldman, G; Weller, HR; Tilley, DR
Published in: Nuclear Physics, Section A
September 26, 1994

Measurements of angular distributions of the cross section, vector and tensor analyzing powers have been performed at Ed(lab)= 9.0 MeV and 2.0 MeV for the 6Li(d, γ)8Be reaction. Excitation functions were also measured for Ed(lab) = 7.0-14.0 MeV at θ{symbol}lab = 130°. Transition matrix element analyses of the angular distributions were performed at both energies. The results of these analyses at Ed(lab)= 9.0 MeV show the presence of 13-21% E1 radiation in addition to the expected dominant E2 radiation. At Ed(lab)= 2.0 MeV the reaction has a dominant E1 contribution comprising about 60% of the cross section. The largest E1 component at both energies is the isospin-forbidden E1 transition comprising 10% of the cross section at Ed(lab)= 9.0 MeV and 40% of the cross section at Ed(lab)= 2.0 MeV. The angular distributions at Ed(lab)= 9.0 MeV were compared to a simple direct capture (DC) calculation, leading to a D-state probability of PD = 1.5% for the 6Li + d component of the D-state in the ground state of 8Be. A multichannel resonating group model (MCRGM) calculation was also performed and compared to the data. The MCRGM used an effective nucleon-nucleon two-body force and predicts a D-state probability of PD = 0.3% for the 6Li + d component of the D-state in the ground state of 8Be. © 1994.

Duke Scholars

Published In

Nuclear Physics, Section A

DOI

ISSN

0375-9474

Publication Date

September 26, 1994

Volume

577

Issue

3-4

Start / End Page

653 / 673

Related Subject Headings

  • Nuclear & Particles Physics
  • 5107 Particle and high energy physics
  • 5106 Nuclear and plasma physics
  • 5101 Astronomical sciences
  • 0206 Quantum Physics
  • 0202 Atomic, Molecular, Nuclear, Particle and Plasma Physics
  • 0201 Astronomical and Space Sciences
 

Citation

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Williams, J. Z., Feldman, G., Weller, H. R., & Tilley, D. R. (1994). Radiative capture of polarized deuterons by 6Li and the D-state of 8Be. Nuclear Physics, Section A, 577(3–4), 653–673. https://doi.org/10.1016/0375-9474(94)90938-5
Williams, J. Z., G. Feldman, H. R. Weller, and D. R. Tilley. “Radiative capture of polarized deuterons by 6Li and the D-state of 8Be.” Nuclear Physics, Section A 577, no. 3–4 (September 26, 1994): 653–73. https://doi.org/10.1016/0375-9474(94)90938-5.
Williams JZ, Feldman G, Weller HR, Tilley DR. Radiative capture of polarized deuterons by 6Li and the D-state of 8Be. Nuclear Physics, Section A. 1994 Sep 26;577(3–4):653–73.
Williams, J. Z., et al. “Radiative capture of polarized deuterons by 6Li and the D-state of 8Be.” Nuclear Physics, Section A, vol. 577, no. 3–4, Sept. 1994, pp. 653–73. Scopus, doi:10.1016/0375-9474(94)90938-5.
Williams JZ, Feldman G, Weller HR, Tilley DR. Radiative capture of polarized deuterons by 6Li and the D-state of 8Be. Nuclear Physics, Section A. 1994 Sep 26;577(3–4):653–673.
Journal cover image

Published In

Nuclear Physics, Section A

DOI

ISSN

0375-9474

Publication Date

September 26, 1994

Volume

577

Issue

3-4

Start / End Page

653 / 673

Related Subject Headings

  • Nuclear & Particles Physics
  • 5107 Particle and high energy physics
  • 5106 Nuclear and plasma physics
  • 5101 Astronomical sciences
  • 0206 Quantum Physics
  • 0202 Atomic, Molecular, Nuclear, Particle and Plasma Physics
  • 0201 Astronomical and Space Sciences