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Recoil-beta tagging: A novel technique for studying proton-drip-line nuclei

Abstract : Tagging with charged particles and g-rays at the focal plane of recoil separators has proven, over the last two decades, to be a very powerful tool for the identification of excited states in exotic nuclei produced with very low cross-sections. One of the key areas so far unexplored in terms of the tagging methodology has been performing correlations with b-particles at the focal plane of a recoil separator. A new technique entitled Recoil-Beta Tagging (RBT) has been developed, this technique exploits the unusual properties of Fermi superallowed b emitters, which have both a short half-life (100 ms) and high bþ-endpoint energy. Correlating with such b-particles using a double-sided silicon strip detector and planar germanium detector as an effective DE2E telescope for high-energy positrons has allowed a proof-of-principle of this technique to be carried out, by cleanly identifying excited states in the proton-drip-line nucleus, $^{74}$Rb
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Submitted on : Tuesday, June 24, 2008 - 4:44:01 PM
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A.N. Steer, D.G. Jenkins, R. Glover, B.S. Nara Singh, N.S. Pattabiraman, et al.. Recoil-beta tagging: A novel technique for studying proton-drip-line nuclei. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Elsevier, 2006, 565, pp.630-636. ⟨10.1016/j.nima.2006.06.034⟩. ⟨in2p3-00290119⟩



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