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Isobaric analog res...
Isobaric analog resonances of Mg-31 and the border of the island of inversion
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Imai, N. (författare)
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Mukai, M. (författare)
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- Cederkäll, Joakim (författare)
- Lund University,Lunds universitet,Kärnfysik,Fysiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Nuclear physics,Department of Physics,Departments at LTH,Faculty of Engineering, LTH
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Aghai, H. (författare)
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- Golubev, Pavel (författare)
- Lund University,Lunds universitet,Kärnfysik,Fysiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Nuclear physics,Department of Physics,Departments at LTH,Faculty of Engineering, LTH
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- Johansson, Håkan T, 1977 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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Kahl, D. (författare)
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Kurcewics, J. (författare)
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Teranishi, T. (författare)
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Watanabe, Y. X. (författare)
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(creator_code:org_t)
- 2014
- 2014
- Engelska.
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Ingår i: Physical Review C (Nuclear Physics). - 0556-2813 .- 2469-9985 .- 2469-9993. ; 90:1
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Abstract
Ämnesord
Stäng
- The evolution of the nuclear shell structure in the region of the neutron-rich shell-breaking nucleus Mg-32 has been the subject of considerable interest. We present here the first determination of the overlap of the ground and two first excited states in Mg-31 with a neutron coupled to the ground state in Mg-30 based on studies of its isobaric analog resonances in Al-31. The excitation function for proton resonant elastic scattering on Mg-30 was measured close to 0 degrees in the laboratory frame by bombarding a thick polyethylene target with a Mg-30 beam at an energy of 2.92 MeV/nucleon at the REX-ISOLDE facility at CERN. Three resonances were successfully resolved, and angular momenta and total and proton resonance widths were determined by using R-matrix analysis. The deduced spectroscopic factor for the ground state in Mg-31 is consistent with the shell-model calculation, whereas those for the first and second excited states could not be reproduced. These results show that a drastic change in structure occurs between Mg-30 and Mg-31 and that the onset of structural change in this region therefore occurs between these two isotopes.
Ämnesord
- NATURVETENSKAP -- Fysik -- Subatomär fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Subatomic Physics (hsv//eng)
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Till lärosätets databas
- Av författaren/redakt...
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Imai, N.
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Mukai, M.
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Cederkäll, Joaki ...
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Aghai, H.
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Golubev, Pavel
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Johansson, Håkan ...
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visa fler...
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Kahl, D.
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Kurcewics, J.
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Teranishi, T.
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Watanabe, Y. X.
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visa färre...
- Om ämnet
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- NATURVETENSKAP
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NATURVETENSKAP
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och Fysik
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och Subatomär fysik
- Artiklar i publikationen
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Physical Review ...
- Av lärosätet
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Lunds universitet
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Chalmers tekniska högskola