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Three-body correlations in electromagnetic dissociation of Borromean nuclei: The He-6 case

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dc.creator Chulkov, L. V.
dc.creator Simon, H.
dc.creator Thompson, I. J.
dc.creator Aumann, T.
dc.creator García Borge, María José
dc.creator Elze, Th. W.
dc.creator Emling, H.
dc.creator Geissel, H.
dc.creator Grigorenko, L. V.
dc.creator Hellström, M.
dc.creator Jonson, B.
dc.creator Kratz, J. W. V.
dc.creator Kulessa, R.
dc.creator Markenroth, K.
dc.creator Meister, M.
dc.creator Münzenberg, G.
dc.creator Nickel, F.
dc.creator Nilsson, T.
dc.creator Nyman, G.
dc.creator Pribora, V.
dc.creator Richter, Achim W.
dc.creator Riisager, K.
dc.creator Scheidenberger, C.
dc.creator Schrieder, G.
dc.creator Tengblad, Olof
dc.creator Zhukov, M. V.
dc.date 2008-05-20T09:40:31Z
dc.date 2008-05-20T09:40:31Z
dc.date 2005-06-13
dc.date.accessioned 2017-01-31T01:22:47Z
dc.date.available 2017-01-31T01:22:47Z
dc.identifier Nuclear Physics A 759(1-2): 23–42 (2005)
dc.identifier 0375-9474
dc.identifier http://hdl.handle.net/10261/4361
dc.identifier 10.1016/j.nuclphysa.2005.05.001
dc.identifier.uri http://dspace.mediu.edu.my:8181/xmlui/handle/10261/4361
dc.description 20 pages, 2 tables, 9 figures, 1 appendix.-- PACS nrs.: 25.60.-t; 27.20.+n; 25.70.De; 25.75.Gz.-- Printed version published Sep 5, 2005.
dc.description Dissociation of He-6 on a lead target has been studied at 240 MeV/u. The four-momenta of the two neutrons in coincidence with alpha-particles have been measured and used to reconstruct the three-body energy and angular correlations in the final state. For the first time, three-body correlations were included in the analysis of the He-6 dissociation data, and compared with calculations assuming a dipole mode for the electromagnetic dissociation. In addition, the experimental data have been analyzed using a series expansion of the final transition amplitude into hyperspherical functions, showing the importance of both nn and alpha n final-state interactions. It is shown that the dissociation process is governed by a transition of one neutron from the p-shell in the 6He ground state to the s-shell in the continuum further indicating that the role of the transition through an intermediate He-5(3/2(-)) state is more important than expected.
dc.description This work was supported by the BMBF under Contracts 06 DA 115, 06 OF 112 and 06 MZ 174 and by GSI via Hochschulzusammenarbeitsvereinbarungen under Contracts DA RICK, OF ELZ and partly supported by the Polish Committee of Scientific Research under Contract PBZ/PB03/113/09, EC under contract ERBCHGE-CT92-0003, CICYT under contract AEN92-0788-C02-02 (MJGB) and RFBR grant No. 04-02-17251. One of us (B.J.) acknowledges the support through an Alexander von Humbold Research Award.
dc.description Peer reviewed
dc.format 638151 bytes
dc.format application/pdf
dc.language eng
dc.publisher Elsevier
dc.relation http://dx.doi.org/10.1016/j.nuclphysa.2005.05.001
dc.rights closedAccess
dc.subject He-6
dc.subject Unstable nuclei
dc.subject Coulomb excitation
dc.subject Particle correlations
dc.subject [PACS] Reactions induced by unstable nuclei
dc.subject [PACS] Properties of specific nuclei listed by mass ranges: 6 ≤ A ≤ 19
dc.subject [PACS] Particle correlations and fluctuations
dc.title Three-body correlations in electromagnetic dissociation of Borromean nuclei: The He-6 case
dc.type Artículo

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