Enhanced strength of the 2{sub 1}{sup +}{yields}0{sub g.s.}{sup +} transition in {sup 114}Sn studied via Coulomb excitation in inverse kinematics

Journal Article · Mon Sep 15 04:00:00 EDT 2008 · Physical Review. C, Nuclear Physics

DOI:https://doi.org/10.1103/PHYSREVC.78.031303· OSTI ID:21192173

Doornenbal, P ^[1]; Reiter, P ^[1]; Grawe, H; Wollersheim, H J; Gerl, J; Gorska, M; Kojouharov, I; Prokopowicz, W; Schaffner, H ^[2]; Bednarczyk, P ^[2]; Caceres, L ^[2]; Cederkaell, J ^[3]; Ekstroem, A ^[4]; Jhingan, A; Kumar, R; Singh, R P ^[5]

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1. Institut fuer Kernphysik, Universitaet zu Koeln, D-50937 Koeln (Germany)
2. Gesellschaft fuer Schwerionenforschung mbH, D-64291 Darmstadt (Germany)
3. PH Department, CERN, 1211 Geneva (Switzerland)
4. Department of Physics, Lund University, 22100 Lund (Sweden)
5. Inter-Univerisity Accelerator Centre, New Delhi 110 067 (India)

The 2{sub 1}{sup +} states of {sup 114,116}Sn were excited in two consecutive experiments by means of Coulomb excitation in inverse kinematics on a {sup 58}Ni target. A precise determination of the reduced transition probability B(E2; 0{sub g.s.}{sup +}{yields}2{sub 1}{sup +}) of {sup 114}Sn relative to the well-known 2{sub 1}{sup +} excitation strength in {sup 116}Sn was achieved by comparing the relative projectile to target 2{sub 1}{sup +}{yields}0{sub g.s.}{sup +} decay intensities. The obtained B(E2{up_arrow}) value of 0.232(8) e{sup 2}b{sup 2} for {sup 114}Sn confirms the tendency of large B(E2{up_arrow}) values for the light tin isotopes below the midshell {sup 116}Sn that has been observed recently in various radioactive ion beam experiments. The result establishes most clearly the discrepancy between the current B(E2{up_arrow}) value predictions from large-scale shell-model calculations and the experimental deviation, which commences already for the stable {sup 114}Sn isotope.

• OSTI ID: 21192173
• Journal Information: Physical Review. C, Nuclear Physics, Journal Name: Physical Review. C, Nuclear Physics Journal Issue: 3 Vol. 78; ISSN 0556-2813; ISSN PRVCAN
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
COULOMB EXCITATION
CURRENTS
DECAY
E2-TRANSITIONS
FORECASTING
NICKEL 58
PROBABILITY
RADIOACTIVE ION BEAMS
SHELL MODELS
TIN 114
TIN 116