2008
DOI: 10.1103/physrevc.78.044321
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Coulomb excitation of radioactiveNa21and its stable mirrorNe21

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Cited by 20 publications
(11 citation statements)
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“…The first accelerated RIB experiment with TIGRESS at ISAC investigated the structure of 21 Na, together with its well-known stable mirror nucleus 21 Ne, via low-energy Coulomb excitation [125]. The primary motivation for this experiment was to improve knowledge of transition matrix elements in radioactive 21 Na, for which the B(E2) connecting the 3 was both highly uncertain due to the uncertainty in the mixing ratio for the de-exciting γ -ray transition [126] and, in comparison with the more precisely measured mirror transition in 21 Ne, B(E2; 3 2 + → 5 2 + ) = 24 ± 3 W.u., in contradiction with the universal prediction of the sd-shell model calculations with standard effective charges that the B(E2) for this transition should be larger in the more proton-rich member of the mirror pair, 21 Na.…”
Section: Na and Its Mirror 21 Nementioning
confidence: 99%
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“…The first accelerated RIB experiment with TIGRESS at ISAC investigated the structure of 21 Na, together with its well-known stable mirror nucleus 21 Ne, via low-energy Coulomb excitation [125]. The primary motivation for this experiment was to improve knowledge of transition matrix elements in radioactive 21 Na, for which the B(E2) connecting the 3 was both highly uncertain due to the uncertainty in the mixing ratio for the de-exciting γ -ray transition [126] and, in comparison with the more precisely measured mirror transition in 21 Ne, B(E2; 3 2 + → 5 2 + ) = 24 ± 3 W.u., in contradiction with the universal prediction of the sd-shell model calculations with standard effective charges that the B(E2) for this transition should be larger in the more proton-rich member of the mirror pair, 21 Na.…”
Section: Na and Its Mirror 21 Nementioning
confidence: 99%
“…To investigate these issues, a stable beam of 21 Ne and a radioactive beam of 21 Na, each of ∼5 × 10 6 ion s −1 intensity, were accelerated to 1.7 A MeV by the ISAC-I accelerator system, Coulomb excited in a 0.5 mg cm −2 natural Ti target, and studied with the first two TIGRESS HPGe clover detectors positioned at 90 • to the beam axis [125]. Crucial to these measurements, and to all of the TIGRESS results presented here, was the BAMBINO detector.…”
Section: Na and Its Mirror 21 Nementioning
confidence: 99%
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“…The quoted error on this measurement arises from the uncertainties of N P γ (3.5%) and ε P γ (3.1%). Other contributions are less significant and include the φ asymmetry of the TIGRESS detectors (< 0.5%) [55].…”
mentioning
confidence: 99%
“…We discuss the isotope 20 Ne as the first of a series of examples centered around A = 20. This region of the chart has received significant experimental attention [69,70] due, among other things, to its relevance for astrophysics [71]. In theoretical studies, this region is typically accessed theoretically using the shell model and is of particular interest in the context of isospin symmetry breaking [72].…”
Section: Nementioning
confidence: 99%