1. Probing single-particle structures beyond the proton drip line
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R. D. Page, L. Bianco, I. G. Darby, D. T. Joss, T. Grahn, R.-D. Herzberg, J. Pakarinen, J. Thomson, J. Uusitalo, S. Eeckhaudt, P. T. Greenlees, P. M. Jones, R. Julin, S. Juutinen, S. Ketelhut, M. Leino, A.-P. Leppänen, M. Nyman, P. Rahkila, J. Sarén, C. Scholey, A. Steer, M. Venhart, J. Simpson, J. S. Al-Khalili, A. J. Cannon, P. D. Stevenson, S. Ertürk, B. Gall, B. Hadinia, Lídia S. Ferreira, Paramasivan Arumugan, Département Recherches Subatomiques (DRS-IPHC), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), Lídia S. Ferreira, Paramasivan Arumugan, Ferreira, LS, Arumugam, P, Scholey, Catherine -- 0000-0002-8743-6071, Stevenson, Paul -- 0000-0003-2645-2569, Pakarinen, Janne -- 0000-0001-8944-8757, Grahn, Tuomas -- 0000-0002-6255-2279, Jones, Pete -- 0000-0001-7480-6603, and [Page, R. D. -- Bianco, L. -- Darby, I. G. -- Joss, D. T. -- Grahn, T. -- Herzberg, R. -D. -- Pakarinen, J. -- Thomson, J.] Univ Liverpool, Dept Phys, Oliver Lodge Lab, Liverpool L69 7ZE, Merseyside, England -- [Uusitalo, J. -- Eeckhaud, S. -- Greenlees, P. T. -- Jones, P. M. -- Julin, R. -- Juutinen, S. -- Ketelhut, S. -- Leino, M. -- Leppanen, A. -P. -- Nyman, M. -- Rahkila, P. -- Saren, J. -- Scholey, C. -- Steer, A. -- Venhart, M.] Univ jyvaskyla, Dept Phys, FIN-40014 Jyvaskyla, Finland -- [Simpson, J.] STFC, Daresbury Lab, Warrington WA4 4AD, Cheshire, England -- [Al-Khalili, J. S. -- Cannon, A. J. -- Stevenson, P. D.] Univ Surrey, Dept Phys, Guildford GU2 7XH, Surrey, England -- [Erturk, S.] Nigde Univ, Nigde, Turkey -- [Gall, B.] ULP Strasbourg, CNRS IN2P, IPHC, F-67037 Strasbourg 2, France -- [Hadinia, B.] AlbaNova Univ Ctr, Royal Inst Technol, S-10691 Stockholm, Sweden
- Subjects
Proton ,Nuclear Theory ,[PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex] ,01 natural sciences ,7. Clean energy ,Nuclear physics ,0103 physical sciences ,nuclei with mass number 150 to 189 ,Neutron ,alpha-decay ,radioactive decay periods ,Proton emission ,branching ratio. Re-159 ,010306 general physics ,Nuclear Experiment ,Physics ,RADIOACTIVITY Re-159(alpha)[from Cd-106(Ni-58,p4n)] ,Ta-155 deduced levels ,Ta-155(p)[from Re-159 a decay] ,010308 nuclear & particles physics ,Alpha particle ,previous Ta-155 study ,Charged particle ,comparisons with neighbouring nuclides ,measured E-alpha, E-p, T-1/2 ,23.50.+z ,23.60.+e ,27.70.+q ,J, pi configurations ,Alpha decay ,Atomic physics ,Nucleon ,Radioactive decay ,proton emission decay - Abstract
International Conference on Proton Emitting Nuclei and Related Topics -- JUN 17-23, 2007 -- Lisbon, PORTUGAL, WOS: 000252267300021, Single-particle energies have been investigated in the closed neutron shell proton emitter Ta-155. The Ta-155 nuclei were populated through the alpha decay of Re-159, which has been observed for the first time. The (159)Rc nuclei were produced in reactions of 300 MeV Ni-58 ions with an isotopically enriched Cd-106 target, separated in-flight using the RITU separator and implanted into the GREAT spectrometer. The Re-159 a decay emanates from the proton-emitting pi h(11/2) state and populates a state in Ta-155 which decays by the emission of a proton from a pi h(11/2) orbital. The results fit in with the systematics of proton and alpha-particle separation energies in the region, but disagree with the previously reported decay properties of Ta-155., Fundacao Ciencia & Tecnol, Minist Ciencia & Tecnol, Fundacao Calouste Gulbenklan, Fundacao Luso Americana, UK Engineering and Physical Sciences Research Council; Swedish Natural Science Research Council; Academy of Finland under the Firmish Centre of Excellence Programme (project 44875 Nuclear and Condensed Matter Physics Programme at JYFL); European Union Sixth Framework contract EURONS [RII3-CT-2004-506065]; European Union Marie Curie Programme [HPMT-CT-2001-00250], The authors would like to thank the technical staff at the Accelerator Laboratory at the University of Jyvaskyla for their excellent support and to Paul Morrall from Daresbury Laboratory for making the targets. This work has been supported by the UK Engineering and Physical Sciences Research Council; the Swedish Natural Science Research Council; the Academy of Finland under the Firmish Centre of Excellence Programme (project 44875 Nuclear and Condensed Matter Physics Programme at JYFL); the European Union Sixth Framework contract EURONS (contract RII3-CT-2004-506065) and the European Union Marie Curie Programme (contract HPMT-CT-2001-00250).
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- 2007
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