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Breakup channels fo...
Breakup channels for C-12 triple-alpha continuum states
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Diget, C. A. (author)
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Barker, F. C. (author)
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Borge, M. J. G. (author)
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Boutami, R. (author)
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Dendooven, P. (author)
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Eronen, T. (author)
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Fox, S. P. (author)
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Fulton, B. R. (author)
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Fynbo, H. O. U. (author)
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Huikari, J. (author)
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Hyldegaard, S. (author)
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Jeppesen, H. B. (author)
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Jokinen, A. (author)
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- Jonson, Björn, 1941 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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Kankainen, A. (author)
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Moore, I. (author)
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Nieminen, A. (author)
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- Nyman, Göran Hugo, 1943 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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Penttila, H. (author)
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Pucknell, V. F. E. (author)
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Riisager, K. (author)
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Rinta-Antila, S. (author)
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Tengblad, Olof, 1957 (author)
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Wang, Y. (author)
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- Wilhelmsen, Katarina, 1962 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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Aysto, J. (author)
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(creator_code:org_t)
- 2009
- 2009
- English.
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In: Physical Review C - Nuclear Physics. - 2469-9985 .- 2469-9993. ; 80:3
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http://dx.doi.org/10...
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https://doi.org/10.1...
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Abstract
Subject headings
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- The triple-alpha-particle breakup of states in the triple-alpha continuum of C-12 has been investigated by way of coincident detection of all three alpha particles of the breakup. The states have been fed in the beta decay of N-12 and B-12, and the alpha particles measured using a setup that covers all of the triple-alpha phase space. Contributions from the breakup through the Be-8(0(+)) ground state as well as other channels-interpreted as breakup through excited energies in Be-8-have been identified. Spins and parities of C-12 triple-alpha continuum states are deduced from the measured phase-space distributions for breakup through Be-8 above the ground state by comparison to a fully symmetrized sequential R-matrix description of the breakup. At around 10 MeV in C-12, the breakup is found to be dominated by 0(+) strength breaking up through the ghost of the Be-8(0(+)) ground state with L = 0 angular momentum between the first emitted alpha particle and the intermediate Be-8 nucleus. For C-12 energies above the 12.7 MeV 1(+) state, however, L = 2 breakup of a C-12 2(+) state through the Be-8(2(+)) excited state dominates. Furthermore, the possibility of a 2(+) excited state in the 9-12 MeV region of C-12 is investigated.
Subject headings
- NATURVETENSKAP -- Fysik -- Subatomär fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Subatomic Physics (hsv//eng)
- NATURVETENSKAP -- Fysik -- Astronomi, astrofysik och kosmologi (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Astronomy, Astrophysics and Cosmology (hsv//eng)
Keyword
- resonances
- energy-levels
- rates
- particle
- light-nuclei
- be-8
- decay
Publication and Content Type
- art (subject category)
- ref (subject category)
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- By the author/editor
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Diget, C. A.
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Barker, F. C.
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Borge, M. J. G.
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Boutami, R.
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Dendooven, P.
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Eronen, T.
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show more...
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Fox, S. P.
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Fulton, B. R.
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Fynbo, H. O. U.
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Huikari, J.
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Hyldegaard, S.
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Jeppesen, H. B.
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Jokinen, A.
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Jonson, Björn, 1 ...
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Kankainen, A.
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Moore, I.
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Nieminen, A.
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Nyman, Göran Hug ...
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Penttila, H.
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Pucknell, V. F. ...
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Riisager, K.
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Rinta-Antila, S.
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Tengblad, Olof, ...
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Wang, Y.
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Wilhelmsen, Kata ...
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Aysto, J.
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show less...
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NATURAL SCIENCES
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Chalmers University of Technology