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Three-body vs. dine...
Three-body vs. dineutron approach to two-neutron radiative capture in 6 He
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- Grigorenko, L (author)
- Joint Institute for Nuclear Research (JINR), Russian Federation,National Research Nuclear University MEPhI (Moscow Engineering Physics Institute), Russian Federation,National Research Centre "Kurchatov Institute"
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- Shulgina, N. B. (author)
- Joint Institute for Nuclear Research (JINR), Russian Federation,National Research Centre "Kurchatov Institute"
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- Zhukov, Mikhail, 1943 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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(creator_code:org_t)
- Elsevier BV, 2020
- 2020
- English.
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In: Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics. - : Elsevier BV. - 0370-2693. ; 807
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Abstract
Subject headings
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- The low-energy behavior of the strength function for the 1− soft dipole excitation in 6He is studied theoretically. Use of very large basis sizes and well-grounded extrapolation procedures allows to move to energies as small as 1 keV, at which the low-energy asymptotic behavior of the E1 strength function seems to be achieved. It is found that the low-energy behavior of the strength function is well described in the effective three-body “dynamical dineutron model”. The astrophysical rate for the α+n+n→6He+γ is calculated. Comparison with the previous calculations is performed.
Subject headings
- NATURVETENSKAP -- Fysik -- Atom- och molekylfysik och optik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Atom and Molecular Physics and Optics (hsv//eng)
- NATURVETENSKAP -- Fysik -- Annan fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Other Physics Topics (hsv//eng)
- NATURVETENSKAP -- Kemi -- Teoretisk kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Theoretical Chemistry (hsv//eng)
Keyword
- Neutron halo
- Three-body hyperspherical harmonics method
- Two-neutron nonresonant radiative capture reaction
- Soft dipole mode
- Dynamical dineutron model
Publication and Content Type
- art (subject category)
- ref (subject category)
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