منابع مشابه
Electromagnetic strength of neutron and proton single-particle halo nuclei
Electromagnetic strength functions of halo nuclei exhibit universal features that can be described in terms of characteristic scale parameters. For a nucleus with nucleon+core structure the reduced transition probability, as determined, e.g., by Coulomb dissociation experiments, shows a typical shape that depends on the nucleon separation energy and the orbital angular momenta in the initial an...
متن کاملFusion and breakup of halo nuclei
We discuss the effect of the coupling to the break-up channel on the total fusion involving a halo nucleus with a heavy target. We show that there is a competition between the hindrance arising from this coupling mostly at above barrier energies, and the enhancement which ensues at sub-barrier energies owing to the static effect of the extended matter distribution and the coupling to the soft m...
متن کاملEffective field theory for proton halo nuclei
Emil Ryberg,1 Christian Forssén,1 H.-W. Hammer,2,3,4 and Lucas Platter1,5,* 1Department of Fundamental Physics, Chalmers University of Technology, SE-412 96 Göteborg, Sweden 2Helmholtz-Institut für Strahlenund Kernphysik, Universität Bonn, 53115, Bonn, Germany 3Institut für Kernphysik, Technische Universität Darmstadt, 64289 Darmstadt, Germany 4ExtreMe Matter Institute (EMMI), GSI Helmholtzzent...
متن کاملReaction mechanisms for two-neutron halo breakup.
We describe a reaction mechanism which is consistent with all available experimental information of high energy three-body breakup processes. The dominating channels are removal of one of the three halo particles leaving the other two either undisturbed or absorbed. We compare with the commonly used deceptive assumption of a decay through two-body resonance states. Our predictions can be tested...
متن کاملUniversality and Halo Nuclei
Universal aspects of few-body systems will be reviewed motivated by recent interest in atomic and nuclear physics. The critical conditions for the existence of excited states in three-body systems with two-identical particles will be explored. In particular, we consider halo nuclei that can be modeled as three-body nuclear systems, with two halo neutrons and a core. In this context, we also dis...
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ژورنال
عنوان ژورنال: Progress of Theoretical Physics Supplement
سال: 2004
ISSN: 0375-9687
DOI: 10.1143/ptps.154.85