Light nuclei in the vicinity of the dripline and beyond

Chulkov, L. V.; Jonson, B.; Zhukov, M. V.

doi:10.1140/epja/i2015-15097-8

Cited by 9 publications

(9 citation statements)

References 175 publications

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“…Как показали эксперименты по изучению реакций 1 H( 14 Be,2pn) 12 Li и 1 H( 14 Be,2p) 13 Li в жидкой водородной мишени при энергии пучка 14 Be 304 МэВ/нуклон, экстремально экзотические ядерные системы 12 Li и 13 Li могут быть отнесены к несвязанным ядрам. Эксперименты этого типа позволили пересечь границу стабильности и начать изучение несвязанных ядерных систем за её пределами [3] (рис. 3).…”

Section: йонсенunclassified

“…Ядра вблизи этой границы называют экзотическими. Их отличает малое (от минут до микросекунд) время полураспада и значительное отклонение соотношения между числом нейтронов и протонов от значения, свойственного стабильным ядрам [1,3,5].…”

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Exotic nuclei

Jonson

2019

Вестник Российской академии наук

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One of the most interesting and intensively examined research directions in nuclear physics, i.e., the production and investigation of exotic nuclei in the vicinity of drip-lines is investigated. An historical overview of the development of research area is provided. Methods to produce such nuclei realized at the foremost research facilities in the world, e.g., CERN in Switzerland and GSI in Germany, are described. The critical change of the nuclear structure on approaching proton and neutron drip-lines, as well as the results of experimental studies of neutron- and proton-rich nuclei, the mechanism of neutron halo formation in neutron-rich isotopes of helium, lithium, beryllium, and boron, are discussed. In addition, medical applications of radioactive beams are discussed briefly.

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Section: йонсенunclassified

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Exotic nuclei

Jonson

2019

Вестник Российской академии наук

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“…The investigation of nuclear structure and reaction mechanisms for light drip-line nuclei, using intense radioactive beams, is one of the current frontiers of experimental and theoretical nuclear physics [1]. The halos discovered in light dripline nuclei are fascinating structural phenomena characterised by low separation energies of the valence nucleons in low-angular momentum states.…”

Section: Introductionmentioning

confidence: 99%

Comparison of electromagnetic and nuclear dissociation of Ne17

Wamers¹,

Marganiec²,

Aksouh³

et al. 2018

Phys. Rev. C

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The Borromean dripline nucleus 17 Ne has been suggested to possess a two-proton halo structure in its ground state. In the astrophysical rp process, where the two-proton capture reaction 15 O(2p, γ) 17 Ne, plays an important role, the calculated reaction rate differs by several orders of magnitude between different theoretical approaches. To add to the understanding of 17 Ne structure we have studied nuclear and electromagnetic dissociation. A 500 MeV/u 17 Ne beam was directed towards lead, carbon and polyethylene targets. Oxygen isotopes in the final state were measured in coincidence with one or two protons. Different reaction branches in the dissociation of 17 Ne were disentangled. The relative populations of s-and d-states in 16 F were determined for light and heavy targets. The differential cross section for electromagnetic dissociation (EMD) shows a continuous internal energy spectrum in the three-body system 15 O+2p. The 17 Ne EMD data were compared to current theoretical models. None of them yields, however, satisfactory agreement with the experimental data presented here. These new data may facilitate future development of adequate models for description of the fragmentation process.

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“…The field has been reinvigorated recently partly due to experimental progress that now allows studies at and even beyond the driplines [1], partly due to the impressive theoretical progress in ab initio calculations, see e.g. [2].…”

Section: Introductionmentioning

confidence: 99%

“…The study of light nuclei has always presented challenges due to the rapid structural changes encountered here. The field has been reinvigorated recently partly due to experimental progress that now allows studies at and even beyond the driplines [1], partly due to the impressive theoretical progress in ab initio calculations, see e.g. [2].…”

Section: Introductionmentioning

confidence: 99%

Study of bound states in¹⁰Be by one neutron removal reactions of¹¹Be

Johansen

Bildstein

Borge

et al. 2017

J. Phys. G: Nucl. Part. Phys.

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The bound states of 10 Be have been studied by removing single neutrons from 11 Be nuclei. A 2.8 MeV u -1 beam of 11 Be was produced at ISOLDE, CERN and directed on to both proton and deuteron targets inducing one-neutron removal reactions. Charged particles were detected to identify the two reaction channels (d, t) and (p, d), and the individual states in 10 Be were identified by Made open access 12 September 2017Original content from this work may be used under the terms of the Creative Commons Attribution 3.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI. gamma detection. All bound states but one were populated and identified in the (d, t) reaction. The combination of REX-ISOLDE and MINIBALL allowed for a clean separation of the high-lying states in 10 Be. This is the first time these states have been separated in a reaction experiment. Differential cross sections have been calculated for all the reaction channels and compared to DWBA calculations. Spectroscopic factors are derived and compared to values from the litterature. While the overall agreement between the spectrocopic factors is poor, the ratio between the ground state and the first excited state is in agreement with the previous measured ones. Furthermore, a significant population of the + 2 2 state is observed, which which may indicate the presence of multi-step processes at our beam energy.

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Light nuclei in the vicinity of the dripline and beyond

Cited by 9 publications

References 175 publications

Exotic nuclei

Exotic nuclei

Comparison of electromagnetic and nuclear dissociation of Ne17

Study of bound states in¹⁰Be by one neutron removal reactions of¹¹Be

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Light nuclei in the vicinity of the dripline and beyond

Cited by 9 publications

References 175 publications

Exotic nuclei

Exotic nuclei

Comparison of electromagnetic and nuclear dissociation of Ne17

Study of bound states in10Be by one neutron removal reactions of11Be

Contact Info

Product

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Study of bound states in¹⁰Be by one neutron removal reactions of¹¹Be