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Shape Coexistence N...
Shape Coexistence Near Neutron Number N=20 : First Identification of the E0 Decay from the Deformed First Excited J(pi)=0(+) State in Mg-30
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Schwerdtfeger, W (author)
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Thirolf, G (author)
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Wimmer, K (author)
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Habs, D (author)
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- Mach, H (author)
- Uppsala universitet,Institutionen för kärn- och partikelfysik
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Rodriguez, R (author)
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Bildstein, V (author)
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Egido, L (author)
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Fraile, M (author)
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Gernhaeuser, R (author)
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Hertenberger, R (author)
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Heyde, K (author)
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Hoff, P (author)
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Huebel, H (author)
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Koester, U (author)
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Kroell, T (author)
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Kruecken, R (author)
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Lutter, R (author)
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Morgan, T (author)
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Ring, P (author)
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(creator_code:org_t)
- 2009
- 2009
- English.
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In: Physical Review Letters. - 0031-9007 .- 1079-7114. ; 103:1, s. 012501-
- Related links:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Subject headings
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- The 1789 keV state in Mg-30 was identified as the first excited 0(+) state via its electric monopole (E0) transition to the ground state. The measured small value of rho(2)(E0,0(2)(+)-> 0(1)(+))=(26.2 +/- 7.5)x10(-3) implies within a two-level model a small mixing of competing configurations with largely different intrinsic quadrupole deformation near the neutron shell closure at N=20. Axially symmetric configuration mixing calculations identify the ground state of Mg-30 to be based on neutron configurations below the N=20 shell closure, while the excited 0(+) state mainly consists of two neutrons excited into the nu 1f(7/2) orbital. The experimental result represents the first case where an E0 back decay from a strongly deformed second to the normal deformed first nuclear potential minimum well has been unambiguously identified, thus directly proving shape coexistence at the borderline of the much-debated "island of inversion."
Subject headings
- NATURVETENSKAP -- Fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences (hsv//eng)
Keyword
- Physics
- Fysik
Publication and Content Type
- ref (subject category)
- art (subject category)
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- By the author/editor
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Schwerdtfeger, W
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Thirolf, G
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Wimmer, K
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Habs, D
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Mach, H
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Rodriguez, R
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show more...
-
Bildstein, V
-
Egido, L
-
Fraile, M
-
Gernhaeuser, R
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Hertenberger, R
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Heyde, K
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Hoff, P
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Huebel, H
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Koester, U
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Kroell, T
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Kruecken, R
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Lutter, R
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Morgan, T
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Ring, P
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show less...
- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Physical Science ...
- Articles in the publication
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Physical Review ...
- By the university
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Uppsala University