Sökning: onr:"swepub:oai:research.chalmers.se:1a90e808-b702-498a-8cb2-07c65bd6a346" > Structure of Be-13 ...
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000 | 11198naa a2201477 4500 | |
001 | oai:research.chalmers.se:1a90e808-b702-498a-8cb2-07c65bd6a346 | |
003 | SwePub | |
008 | 180816s2018 | |||||||||||000 ||eng| | |
024 | 7 | a https://research.chalmers.se/publication/5045192 URI |
024 | 7 | a https://doi.org/10.1103/PhysRevC.98.0246032 DOI |
040 | a (SwePub)cth | |
041 | a engb eng | |
042 | 9 SwePub | |
072 | 7 | a art2 swepub-publicationtype |
072 | 7 | a ref2 swepub-contenttype |
100 | 1 | a Ribeiro, G.u Agencia Estatal Consejo Superior de Investigaciones Científicas,Spanish National Research Council4 aut |
245 | 1 0 | a Structure of Be-13 studied in proton knockout from B-14 |
264 | 1 | c 2018 |
338 | a electronic2 rdacarrier | |
520 | a The neutron-unbound isotope Be-13 has been studied in several experiments using different reactions, different projectile energies, and different experimental setups. There is, however, no real consensus in the interpretation of the data, in particular concerning the structure of the low-lying excited states. Gathering new experimental information, which may reveal the Be-13 structure, is a challenge, particularly in light of its bridging role between Be-12, where the N = 8 neutron shell breaks down, and the Borromean halo nucleus Be-14. The purpose of the present study is to investigate the role of bound excited states in the reaction product Be-12 after proton knockout from B-14, by measuring coincidences between Be-12, neutrons, and gamma rays originating from de-excitation of states fed by neutron decay of Be-13. The Be-13 isotopes were produced in proton knockout from a 400 MeV/nucleon B-14 beam impinging on a CH2 target. The Be-12-n relative-energy spectrum d sigma/dE(fn) was obtained from coincidences between Be-12(g.s.) and a neutron, and also as threefold coincidences by adding gamma rays, from the de-excitation of excited states in Be-12. Neutron decay from the first 5/2(+) state in Be-13 to the 2(+) state in Be-12 at 2.11 MeV is confirmed. An energy independence of the proton-knockout mechanism is found from a comparison with data taken with a 35 MeV/nucleon B-14 beam. A low-lying p-wave resonance in Be-13(1/2(-)) is confirmed by comparing proton- and neutron-knockout data from B-14 and Be-14. | |
650 | 7 | a NATURVETENSKAPx Fysikx Subatomär fysik0 (SwePub)103012 hsv//swe |
650 | 7 | a NATURAL SCIENCESx Physical Sciencesx Subatomic Physics0 (SwePub)103012 hsv//eng |
650 | 7 | a NATURVETENSKAPx Fysik0 (SwePub)1032 hsv//swe |
650 | 7 | a NATURAL SCIENCESx Physical Sciences0 (SwePub)1032 hsv//eng |
700 | 1 | a Nacher, E.u Agencia Estatal Consejo Superior de Investigaciones Científicas,Spanish National Research Council4 aut |
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700 | 1 | a Paschalis, S.u Technische Universität Darmstadt,University of York4 aut |
700 | 1 | a Perea, A.u Agencia Estatal Consejo Superior de Investigaciones Científicas,Spanish National Research Council4 aut |
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700 | 1 | a Wamers, F.u Technische Universität Darmstadt,Helmholtz Zentrum,Helmholtz Center4 aut |
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700 | 1 | a Wimmer, C.u Johann Wolfgang Goethe Universität Frankfurt am Main,Goethe University Frankfurt4 aut |
700 | 1 | a Winfield, J. S.u Helmholtz Zentrum,Helmholtz Center4 aut |
700 | 1 | a Woods, P.u University of Edinburgh4 aut |
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710 | 2 | a Agencia Estatal Consejo Superior de Investigaciones Científicasb Chalmers tekniska högskola4 org |
773 | 0 | t Physical Review Cg 98:2q 98:2x 2469-9985x 2469-9993 |
856 | 4 | u https://research.chalmers.se/publication/504519/file/504519_Fulltext.pdfx primaryx freey FULLTEXT |
856 | 4 8 | u https://research.chalmers.se/publication/504519 |
856 | 4 8 | u https://doi.org/10.1103/PhysRevC.98.024603 |
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