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0(gs)+ -->2(1)+ transition strengths in 106Sn and 108Sn.

Ekström, Andreas (author)
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
Cederkäll, Joakim (author)
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
Fahlander, Claes (author)
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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Hjorth-Jensen, M (author)
Ames, F (author)
Butler, P A (author)
Davinson, T (author)
Eberth, J (author)
Fincke, F (author)
Görgen, A (author)
Górska, M (author)
Habs, D (author)
Hurst, A M (author)
Huyse, M (author)
Ivanov, O (author)
Iwanicki, J (author)
Kester, O (author)
Köster, U (author)
Marsh, B A (author)
Mierzejewski, J (author)
Reiter, P (author)
Scheit, H (author)
Schwalm, D (author)
Siem, S (author)
Sletten, G (author)
Stefanescu, I (author)
Tveten, G M (author)
Van de Walle, J (author)
Van Duppen, P (author)
Voulot, D (author)
Warr, N (author)
Weisshaar, D (author)
Wenander, F (author)
Zielińska, M (author)
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 (creator_code:org_t)
2008
2008
English.
In: Physical Review Letters. - 1079-7114. ; 101:1
  • Journal article (peer-reviewed)
Abstract Subject headings
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  • The reduced transition probabilities, B(E2; 0(gs)+ -->2(1)+), have been measured in the radioactive isotopes (108,106)Sn using subbarrier Coulomb excitation at the REX-ISOLDE facility at CERN. Deexcitation gamma rays were detected by the highly segmented MINIBALL Ge-detector array. The results, B(E2;0(gs)+ -->2(1)+)=0.222(19)e2b2 for 108Sn and B(E2; 0(gs)+-->2(1)+)=0.195(39)e2b2 for 106Sn were determined relative to a stable 58Ni target. The resulting B(E2) values are approximately 30% larger than shell-model predictions and deviate from the generalized seniority model. This experimental result may point towards a weakening of the N=Z=50 shell closure.

Subject headings

NATURVETENSKAP  -- Fysik -- Subatomär fysik (hsv//swe)
NATURAL SCIENCES  -- Physical Sciences -- Subatomic Physics (hsv//eng)

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art (subject category)
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