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Transition from dir...
Transition from direct to sequential two-proton decay in s–d shell nuclei
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- Golubkova, T. A. (author)
- M. V. Lomonosov Moscow State University
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- Xu, X. D. (author)
- Beihang University,Helmholtz Zentrum,Helmholtz Center,Justus-Liebig-Universität Gießen,Justus Liebig University Giessen
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- Grigorenko, L. V. (author)
- National Research Nuclear University MEPhI (Moscow Engineering Physics Institute), Russian Federation,Joint Institute for Nuclear Research (JINR), Russian Federation,National Research Centre "Kurchatov Institute"
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- Mukha, I. G. (author)
- Helmholtz Zentrum,Helmholtz Center,National Research Centre "Kurchatov Institute"
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- Scheidenberger, C. (author)
- Helmholtz Zentrum,Helmholtz Center,Justus-Liebig-Universität Gießen,Justus Liebig University Giessen
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- Zhukov, Mikhail, 1943 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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M V. Lomonosov Moscow State University Beihang University (creator_code:org_t)
- Elsevier BV, 2016
- 2016
- English.
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In: Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics. - : Elsevier BV. - 0370-2693. ; 762, s. 263-270
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Abstract
Subject headings
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- The transition between different mechanisms of two-proton decay in exotic nuclei and the governing physical conditions are generally studied. To perform this large-scale survey, the direct-decay model, which is widely used, was improved by generalizing the semi-analytical approaches used before. The improved model provides a flawless phenomenological description of three-body correlations in 2p decays, as is demonstrated by several examples of decays of low-lying states in 16Ne. Different transition mechanisms are shown to occur beyond the proton dripline for s–d shell nuclei. It is found that the transition dynamics of 2p-emitters allows the extraction of the width of the ground-state resonance of the core+p subsystem. The practical application of the method is illustrated by determining properties of the 14F ground state derived from the Ne15?O13+2p decay data, and of the 29Cl ground state derived from the Ar30?S28+2p decay data.
Subject headings
- NATURVETENSKAP -- Fysik -- Subatomär fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Subatomic Physics (hsv//eng)
Keyword
- Transitions between different modes of two-proton emission
- Two-proton emission mechanisms
- two-proton decay
- One-proton
- Dripline s–d shell nuclei
- Two-proton decays of 15Ne and 30Ar
Publication and Content Type
- art (subject category)
- ref (subject category)
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