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Carroll RJ, Podolyák Z, Berry T, Grawe H, Alexander T, Andreyev AN, Ansari S, Borge MJG, Brunet M, Creswell JR, Fraile LM, Fahlander C, Fynbo HOU, Gamba ER, Gelletly W, Gerst RB, Górska M, Gredley A, Greenlees PT, Harkness-Brennan LJ, Huyse M, Judge SM, Judson DS, Konki J, Kurcewicz J, Kuti I, Lalkovski S, Lazarus IH, Lică R, Lund M, Madurga M, Marginean N, Marginean R, Marroquin I, Mihai C, Mihai RE, Nácher E, Negret A, Nita C, Pascu S, Page RD, Patel Z, Perea A, Phrompao J, Piersa M, Pucknell V, Rahkila P, Rapisarda E, Regan PH, Rotaru F, Rudigier M, Shand CM, Shearman R, Stegemann S, Stora T, Sotty C, Tengblad O, Van Duppen P, Vedia V, Wadsworth R, Walker PM, Warr N, Wearing F, De Witte H. Competition between Allowed and First-Forbidden β Decay: The Case of ^{208}Hg→^{208}Tl. Phys Rev Lett 2020; 125:192501. [PMID: 33216605 DOI: 10.1103/physrevlett.125.192501] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/07/2020] [Revised: 09/21/2020] [Accepted: 10/07/2020] [Indexed: 06/11/2023]
Abstract
The β decay of ^{208}Hg into the one-proton hole, one neutron-particle _{81}^{208}Tl_{127} nucleus was investigated at CERN-ISOLDE. Shell-model calculations describe well the level scheme deduced, validating the proton-neutron interactions used, with implications for the whole of the N>126, Z<82 quadrant of neutron-rich nuclei. While both negative and positive parity states with spin 0 and 1 are expected within the Q_{β} window, only three negative parity states are populated directly in the β decay. The data provide a unique test of the competition between allowed Gamow-Teller and Fermi, and first-forbidden β decays, essential for the understanding of the nucleosynthesis of heavy nuclei in the rapid neutron capture process. Furthermore, the observation of the parity changing 0^{+}→0^{-}β decay where the daughter state is core excited is unique, and can provide information on mesonic corrections of effective operators.
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Affiliation(s)
- R J Carroll
- Department of Physics, University of Surrey, Guildford GU2 7XH, United Kingdom
| | - Zs Podolyák
- Department of Physics, University of Surrey, Guildford GU2 7XH, United Kingdom
- ExtreMe Matter Institute EMMI, GSI Helmholtzzentrum für Schwerionenforschung, Planckstrasse 1, 64291 Darmstadt, Germany
| | - T Berry
- Department of Physics, University of Surrey, Guildford GU2 7XH, United Kingdom
| | - H Grawe
- GSI Helmholtzzentrum für Schwerionenforschung GmbH, Planckstrasse 1, 64291 Darmstadt, Germany
| | - T Alexander
- Department of Physics, University of Surrey, Guildford GU2 7XH, United Kingdom
| | - A N Andreyev
- University of York, Dept Phys, North Yorkshire YO10 5DD, United Kingdom
- Advanced Science Research Center, Japan Atomic Energy Agency, Tokai-mura, Ibaraki 319-1195, Japan
| | - S Ansari
- Institut für Kernphysik der Universität zu Köln, Zülpicher Str. 77, 50937 Köln, Germany
| | - M J G Borge
- CERN, Physics Department, 1211 Geneva 23, Switzerland
| | - M Brunet
- Department of Physics, University of Surrey, Guildford GU2 7XH, United Kingdom
| | - J R Creswell
- Department of Physics, Oliver Lodge Laboratory, University of Liverpool, Liverpool L69 7ZE, United Kingdom
| | - L M Fraile
- Grupo de Física Nuclear & IPARCOS, Universidad Complutense de Madrid, CEI Moncloa, E-28040 Madrid, Spain
| | - C Fahlander
- Department of Physics, Lund University, S-22100 Lund, Sweden
| | - H O U Fynbo
- Department of Physics and Astronomy, Aarhus University, DK-8000 Aarhus, Denmark
| | - E R Gamba
- University of Brighton, Brighton BN2 4GJ, United Kingdom
| | - W Gelletly
- Department of Physics, University of Surrey, Guildford GU2 7XH, United Kingdom
| | - R-B Gerst
- Institut für Kernphysik der Universität zu Köln, Zülpicher Str. 77, 50937 Köln, Germany
| | - M Górska
- GSI Helmholtzzentrum für Schwerionenforschung GmbH, Planckstrasse 1, 64291 Darmstadt, Germany
| | - A Gredley
- Department of Physics, Oliver Lodge Laboratory, University of Liverpool, Liverpool L69 7ZE, United Kingdom
| | - P T Greenlees
- University of Jyvaskyla, Department of Physics, University of Jyvaskyla, P.O. Box 35, FI-40014 Jyvaskyla, Finland
- Helsinki Institute of Physics, University of Helsinki, P.O. Box 64, FI-00014 Helsinki, Finland
| | - L J Harkness-Brennan
- Department of Physics, Oliver Lodge Laboratory, University of Liverpool, Liverpool L69 7ZE, United Kingdom
| | - M Huyse
- KU Leuven, Instituut voor Kern- en Stralingsfysica, Celestijnenlaan 200D, 3001 Leuven, Belgium
| | - S M Judge
- National Physical Laboratory, Teddington, Middlesex TW11 0LW, United Kingdom
| | - D S Judson
- Department of Physics, Oliver Lodge Laboratory, University of Liverpool, Liverpool L69 7ZE, United Kingdom
| | - J Konki
- University of Jyvaskyla, Department of Physics, University of Jyvaskyla, P.O. Box 35, FI-40014 Jyvaskyla, Finland
- Helsinki Institute of Physics, University of Helsinki, P.O. Box 64, FI-00014 Helsinki, Finland
| | - J Kurcewicz
- CERN, Physics Department, 1211 Geneva 23, Switzerland
| | - I Kuti
- Institute of Nuclear Research of the Hungarian Academy of Sciences, 4026 Debrecen, Hungary
| | - S Lalkovski
- Department of Physics, University of Surrey, Guildford GU2 7XH, United Kingdom
| | - I H Lazarus
- STFC, Daresbury Laboratory, Warrington WA4 4AD, United Kingdom
| | - R Lică
- CERN, Physics Department, 1211 Geneva 23, Switzerland
- Horea Hulubei National Institute for Physics and Nuclear Engineering, RO-077125 Bucharest, Romania
| | - M Lund
- Department of Physics and Astronomy, Aarhus University, DK-8000 Aarhus, Denmark
| | - M Madurga
- CERN, Physics Department, 1211 Geneva 23, Switzerland
- Department of Physics and Astronomy, University of Tennessee, Knoxville, Tennessee 37996, USA
| | - N Marginean
- Horea Hulubei National Institute for Physics and Nuclear Engineering, RO-077125 Bucharest, Romania
| | - R Marginean
- Horea Hulubei National Institute for Physics and Nuclear Engineering, RO-077125 Bucharest, Romania
| | - I Marroquin
- Instituto de Estructura de la Materia, CSIC, Serrano 113 bis, E-28006 Madrid, Spain
| | - C Mihai
- Horea Hulubei National Institute for Physics and Nuclear Engineering, RO-077125 Bucharest, Romania
| | - R E Mihai
- Horea Hulubei National Institute for Physics and Nuclear Engineering, RO-077125 Bucharest, Romania
| | - E Nácher
- Instituto de Estructura de la Materia, CSIC, Serrano 113 bis, E-28006 Madrid, Spain
| | - A Negret
- Horea Hulubei National Institute for Physics and Nuclear Engineering, RO-077125 Bucharest, Romania
| | - C Nita
- University of Brighton, Brighton BN2 4GJ, United Kingdom
- Horea Hulubei National Institute for Physics and Nuclear Engineering, RO-077125 Bucharest, Romania
| | - S Pascu
- Horea Hulubei National Institute for Physics and Nuclear Engineering, RO-077125 Bucharest, Romania
| | - R D Page
- Department of Physics, Oliver Lodge Laboratory, University of Liverpool, Liverpool L69 7ZE, United Kingdom
| | - Z Patel
- Department of Physics, University of Surrey, Guildford GU2 7XH, United Kingdom
| | - A Perea
- Instituto de Estructura de la Materia, CSIC, Serrano 113 bis, E-28006 Madrid, Spain
| | - J Phrompao
- Department of Physics and Materials Science, Chiang Mai University, 50200 Chiang Mai, Thailand
| | - M Piersa
- Faculty of Physics, University of Warsaw, PL 02-093 Warsaw, Poland
| | - V Pucknell
- STFC, Daresbury Laboratory, Warrington WA4 4AD, United Kingdom
| | - P Rahkila
- University of Jyvaskyla, Department of Physics, University of Jyvaskyla, P.O. Box 35, FI-40014 Jyvaskyla, Finland
- Helsinki Institute of Physics, University of Helsinki, P.O. Box 64, FI-00014 Helsinki, Finland
| | - E Rapisarda
- CERN, Physics Department, 1211 Geneva 23, Switzerland
| | - P H Regan
- Department of Physics, University of Surrey, Guildford GU2 7XH, United Kingdom
- National Physical Laboratory, Teddington, Middlesex TW11 0LW, United Kingdom
| | - F Rotaru
- Horea Hulubei National Institute for Physics and Nuclear Engineering, RO-077125 Bucharest, Romania
| | - M Rudigier
- Department of Physics, University of Surrey, Guildford GU2 7XH, United Kingdom
| | - C M Shand
- Department of Physics, University of Surrey, Guildford GU2 7XH, United Kingdom
| | - R Shearman
- Department of Physics, University of Surrey, Guildford GU2 7XH, United Kingdom
- National Physical Laboratory, Teddington, Middlesex TW11 0LW, United Kingdom
| | - S Stegemann
- Institut für Kernphysik der Universität zu Köln, Zülpicher Str. 77, 50937 Köln, Germany
| | - T Stora
- CERN, Physics Department, 1211 Geneva 23, Switzerland
| | - Ch Sotty
- KU Leuven, Instituut voor Kern- en Stralingsfysica, Celestijnenlaan 200D, 3001 Leuven, Belgium
- Horea Hulubei National Institute for Physics and Nuclear Engineering, RO-077125 Bucharest, Romania
| | - O Tengblad
- Instituto de Estructura de la Materia, CSIC, Serrano 113 bis, E-28006 Madrid, Spain
| | - P Van Duppen
- KU Leuven, Instituut voor Kern- en Stralingsfysica, Celestijnenlaan 200D, 3001 Leuven, Belgium
| | - V Vedia
- Grupo de Física Nuclear & IPARCOS, Universidad Complutense de Madrid, CEI Moncloa, E-28040 Madrid, Spain
| | - R Wadsworth
- University of York, Dept Phys, North Yorkshire YO10 5DD, United Kingdom
| | - P M Walker
- Department of Physics, University of Surrey, Guildford GU2 7XH, United Kingdom
| | - N Warr
- Institut für Kernphysik der Universität zu Köln, Zülpicher Str. 77, 50937 Köln, Germany
| | - F Wearing
- Department of Physics, Oliver Lodge Laboratory, University of Liverpool, Liverpool L69 7ZE, United Kingdom
| | - H De Witte
- KU Leuven, Instituut voor Kern- en Stralingsfysica, Celestijnenlaan 200D, 3001 Leuven, Belgium
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Damone L, Barbagallo M, Mastromarco M, Mengoni A, Cosentino L, Maugeri E, Heinitz S, Schumann D, Dressler R, Käppeler F, Colonna N, Finocchiaro P, Andrzejewski J, Perkowski J, Gawlik A, Aberle O, Altstadt S, Ayranov M, Audouin L, Bacak M, Balibrea-Correa J, Ballof J, Bécares V, Bečvář F, Beinrucker C, Bellia G, Bernardes AP, Berthoumieux E, Billowes J, Borge MJG, Bosnar D, Brown A, Brugger M, Busso M, Caamaño M, Calviño F, Calviani M, Cano-Ott D, Cardella R, Casanovas A, Castelluccio DM, Catherall R, Cerutti F, Chen YH, Chiaveri E, Correia JGM, Cortés G, Cortés-Giraldo MA, Cristallo S, Diakaki M, Dietz M, Domingo-Pardo C, Dorsival A, Dupont E, Duran I, Fernandez-Dominguez B, Ferrari A, Ferreira P, Furman W, Ganesan S, García-Rios A, Gilardoni S, Glodariu T, Göbel K, Gonçalves IF, González-Romero E, Goodacre TD, Griesmayer E, Guerrero C, Gunsing F, Harada H, Heftrich T, Heyse J, Jenkins DG, Jericha E, Johnston K, Kadi Y, Kalamara A, Katabuchi T, Kavrigin P, Kimura A, Kivel N, Köster U, Kokkoris M, Krtička M, Kurtulgil D, Leal-Cidoncha E, Lederer-Woods C, Leeb H, Lerendegui-Marco J, Lo Meo S, Lonsdale SJ, Losito R, Macina D, Marganiec J, Marsh B, Martínez T, Masi A, Massimi C, Mastinu P, Matteucci F, Mazzone A, Mendoza E, Milazzo PM, Mingrone F, Mirea M, Musumarra A, Negret A, Nolte R, Oprea A, Patronis N, Pavlik A, Piersanti L, Piscopo M, Plompen A, Porras I, Praena J, Quesada JM, Radeck D, Rajeev K, Rauscher T, Reifarth R, Riego-Perez A, Rothe S, Rout P, Rubbia C, Ryan J, Sabaté-Gilarte M, Saxena A, Schell J, Schillebeeckx P, Schmidt S, Sedyshev P, Seiffert C, Smith AG, Sosnin NV, Stamatopoulos A, Stora T, Tagliente G, Tain JL, Tarifeño-Saldivia A, Tassan-Got L, Tsinganis A, Valenta S, Vannini G, Variale V, Vaz P, Ventura A, Vlachoudis V, Vlastou R, Wallner A, Warren S, Weigand M, Weiß C, Wolf C, Woods PJ, Wright T, Žugec P. ^{7}Be(n,p)^{7}Li Reaction and the Cosmological Lithium Problem: Measurement of the Cross Section in a Wide Energy Range at n_TOF at CERN. Phys Rev Lett 2018; 121:042701. [PMID: 30095928 DOI: 10.1103/physrevlett.121.042701] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/16/2018] [Revised: 05/09/2018] [Indexed: 06/08/2023]
Abstract
We report on the measurement of the ^{7}Be(n,p)^{7}Li cross section from thermal to approximately 325 keV neutron energy, performed in the high-flux experimental area (EAR2) of the n_TOF facility at CERN. This reaction plays a key role in the lithium yield of the big bang nucleosynthesis (BBN) for standard cosmology. The only two previous time-of-flight measurements performed on this reaction did not cover the energy window of interest for BBN, and they showed a large discrepancy between each other. The measurement was performed with a Si telescope and a high-purity sample produced by implantation of a ^{7}Be ion beam at the ISOLDE facility at CERN. While a significantly higher cross section is found at low energy, relative to current evaluations, in the region of BBN interest, the present results are consistent with the values inferred from the time-reversal ^{7}Li(p,n)^{7}Be reaction, thus yielding only a relatively minor improvement on the so-called cosmological lithium problem. The relevance of these results on the near-threshold neutron production in the p+^{7}Li reaction is also discussed.
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Affiliation(s)
- L Damone
- INFN, Sezione di Bari, Italy
- Dipartimento di Fisica, Università degli Studi di Bari, Italy
| | - M Barbagallo
- INFN, Sezione di Bari, Italy
- European Organization for Nuclear Research (CERN), Switzerland
| | - M Mastromarco
- INFN, Sezione di Bari, Italy
- European Organization for Nuclear Research (CERN), Switzerland
| | - A Mengoni
- ENEA, Bologna, Italy
- INFN, Sezione di Bologna, Italy
| | - L Cosentino
- INFN, Laboratori Nazionali del Sud, Catania, Italy
| | - E Maugeri
- Paul Scherrer Institut, Villigen PSI, Switzerland
| | - S Heinitz
- Paul Scherrer Institut, Villigen PSI, Switzerland
| | - D Schumann
- Paul Scherrer Institut, Villigen PSI, Switzerland
| | - R Dressler
- Paul Scherrer Institut, Villigen PSI, Switzerland
| | - F Käppeler
- Karlsruhe Institute of Technology (KIT), Institut für Kernphysik, Karlsruhe, Germany
| | | | | | | | | | - A Gawlik
- Uniwersytet Łódzki, Lodz, Poland
| | - O Aberle
- European Organization for Nuclear Research (CERN), Switzerland
| | - S Altstadt
- Johann-Wolfgang-Goethe Universität, Frankfurt, Germany
| | - M Ayranov
- European Commission, DG-Energy, Luxembourg
| | - L Audouin
- Centre National de la Recherche Scientifique/IN2P3, IPN, Orsay, France
| | - M Bacak
- European Organization for Nuclear Research (CERN), Switzerland
- Atominstitut der Österreichischen Universitäten, Technische Universität Wien, Austria
| | - J Balibrea-Correa
- Centro de Investigaciones Energeticas Medioambientales y Tecnológicas (CIEMAT), Madrid, Spain
| | - J Ballof
- European Organization for Nuclear Research (CERN), Switzerland
| | - V Bécares
- Centro de Investigaciones Energeticas Medioambientales y Tecnológicas (CIEMAT), Madrid, Spain
| | - F Bečvář
- Charles University, Prague, Czech Republic
| | - C Beinrucker
- Johann-Wolfgang-Goethe Universität, Frankfurt, Germany
| | - G Bellia
- INFN, Laboratori Nazionali del Sud, Catania, Italy
- Dipartimento di Fisica e Astronomia, Università di Catania, Italy
| | - A P Bernardes
- European Organization for Nuclear Research (CERN), Switzerland
| | | | - J Billowes
- University of Manchester, Oxford Road, Manchester, United Kingdom
| | - M J G Borge
- European Organization for Nuclear Research (CERN), Switzerland
| | - D Bosnar
- Department of Physics, Faculty of Science, University of Zagreb, Croatia
| | - A Brown
- University of York, Heslington, York, United Kingdom
| | - M Brugger
- European Organization for Nuclear Research (CERN), Switzerland
| | - M Busso
- INFN, Sezione di Perugia, Italy
- Dipartimento di Fisica e Geologia, Università di Perugia, Italy
| | - M Caamaño
- Universidade de Santiago de Compostela, Spain
| | - F Calviño
- Universitat Politecnica de Catalunya, Barcelona, Spain
| | - M Calviani
- European Organization for Nuclear Research (CERN), Switzerland
| | - D Cano-Ott
- Centro de Investigaciones Energeticas Medioambientales y Tecnológicas (CIEMAT), Madrid, Spain
| | - R Cardella
- European Organization for Nuclear Research (CERN), Switzerland
- INFN, Laboratori Nazionali del Sud, Catania, Italy
| | - A Casanovas
- Universitat Politecnica de Catalunya, Barcelona, Spain
| | | | - R Catherall
- European Organization for Nuclear Research (CERN), Switzerland
| | - F Cerutti
- European Organization for Nuclear Research (CERN), Switzerland
| | - Y H Chen
- Centre National de la Recherche Scientifique/IN2P3, IPN, Orsay, France
| | - E Chiaveri
- European Organization for Nuclear Research (CERN), Switzerland
| | - J G M Correia
- European Organization for Nuclear Research (CERN), Switzerland
- C2TN, Centro de Ciências e Tecnologias Nucleares, Instituto Superior Técnico, Universidade de Lisboa, Portugal
| | - G Cortés
- Universitat Politecnica de Catalunya, Barcelona, Spain
| | | | - S Cristallo
- INFN, Sezione di Perugia, Italy
- Istituto Nazionale di Astrofisica, Osservatorio Astronomico d'Abruzzo, Italy
| | - M Diakaki
- National Technical University of Athens (NTUA), Greece
| | - M Dietz
- School of Physics and Astronomy, University of Edinburgh, United Kingdom
| | - C Domingo-Pardo
- Instituto de Física Corpuscular, CSIC, Universidad de Valencia, Spain
| | - A Dorsival
- European Organization for Nuclear Research (CERN), Switzerland
| | - E Dupont
- CEA/Saclay, IRFU, Gif-sur-Yvette, France
| | - I Duran
- Universidade de Santiago de Compostela, Spain
| | | | - A Ferrari
- European Organization for Nuclear Research (CERN), Switzerland
| | - P Ferreira
- C2TN, Centro de Ciências e Tecnologias Nucleares, Instituto Superior Técnico, Universidade de Lisboa, Portugal
| | - W Furman
- Joint Institute of Nuclear Research, Dubna, Russia
| | - S Ganesan
- Bhabha Atomic Research Centre (BARC), Mumbai, India
| | - A García-Rios
- Centro de Investigaciones Energeticas Medioambientales y Tecnológicas (CIEMAT), Madrid, Spain
| | - S Gilardoni
- European Organization for Nuclear Research (CERN), Switzerland
| | - T Glodariu
- Horia Hulubei National Institute for Physics and Nuclear Engineering (IFIN-HH), Bucharest-Magurele, Romania
| | - K Göbel
- Johann-Wolfgang-Goethe Universität, Frankfurt, Germany
| | - I F Gonçalves
- C2TN, Centro de Ciências e Tecnologias Nucleares, Instituto Superior Técnico, Universidade de Lisboa, Portugal
| | - E González-Romero
- Centro de Investigaciones Energeticas Medioambientales y Tecnológicas (CIEMAT), Madrid, Spain
| | - T D Goodacre
- European Organization for Nuclear Research (CERN), Switzerland
| | - E Griesmayer
- Atominstitut der Österreichischen Universitäten, Technische Universität Wien, Austria
| | | | - F Gunsing
- CEA/Saclay, IRFU, Gif-sur-Yvette, France
| | - H Harada
- Japan Atomic Energy Agency (JAEA), Tokai-mura, Japan
| | - T Heftrich
- Johann-Wolfgang-Goethe Universität, Frankfurt, Germany
| | - J Heyse
- European Commission JRC, Institute for Reference Materials and Measurements, Geel, Belgium
| | - D G Jenkins
- University of York, Heslington, York, United Kingdom
| | - E Jericha
- Atominstitut der Österreichischen Universitäten, Technische Universität Wien, Austria
| | - K Johnston
- European Organization for Nuclear Research (CERN), Switzerland
| | - Y Kadi
- European Organization for Nuclear Research (CERN), Switzerland
| | - A Kalamara
- National Technical University of Athens (NTUA), Greece
| | | | - P Kavrigin
- Atominstitut der Österreichischen Universitäten, Technische Universität Wien, Austria
| | - A Kimura
- Japan Atomic Energy Agency (JAEA), Tokai-mura, Japan
| | - N Kivel
- Paul Scherrer Institut, Villigen PSI, Switzerland
| | - U Köster
- Institut Laue-Langevin (ILL), Grenoble, France
| | - M Kokkoris
- National Technical University of Athens (NTUA), Greece
| | - M Krtička
- Charles University, Prague, Czech Republic
| | - D Kurtulgil
- Johann-Wolfgang-Goethe Universität, Frankfurt, Germany
| | | | - C Lederer-Woods
- School of Physics and Astronomy, University of Edinburgh, United Kingdom
| | - H Leeb
- Atominstitut der Österreichischen Universitäten, Technische Universität Wien, Austria
| | | | - S Lo Meo
- ENEA, Bologna, Italy
- INFN, Sezione di Bologna, Italy
| | - S J Lonsdale
- School of Physics and Astronomy, University of Edinburgh, United Kingdom
| | - R Losito
- European Organization for Nuclear Research (CERN), Switzerland
| | - D Macina
- European Organization for Nuclear Research (CERN), Switzerland
| | | | - B Marsh
- European Organization for Nuclear Research (CERN), Switzerland
| | - T Martínez
- Centro de Investigaciones Energeticas Medioambientales y Tecnológicas (CIEMAT), Madrid, Spain
| | - A Masi
- European Organization for Nuclear Research (CERN), Switzerland
| | - C Massimi
- INFN, Sezione di Bologna, Italy
- Dipartimento di Fisica e Astronomia, Università di Bologna, Italy
| | - P Mastinu
- INFN, Laboratori Nazionali di Legnaro, Italy
| | - F Matteucci
- INFN, Sezione di Trieste, Italy
- Dipartimento di Astronomia, Università di Trieste, Italy
| | - A Mazzone
- INFN, Sezione di Bari, Italy
- CNR, IC, Bari, Italy
| | - E Mendoza
- Centro de Investigaciones Energeticas Medioambientales y Tecnológicas (CIEMAT), Madrid, Spain
| | | | - F Mingrone
- European Organization for Nuclear Research (CERN), Switzerland
| | - M Mirea
- Horia Hulubei National Institute for Physics and Nuclear Engineering (IFIN-HH), Bucharest-Magurele, Romania
| | - A Musumarra
- INFN, Laboratori Nazionali del Sud, Catania, Italy
- Dipartimento di Fisica e Astronomia, Università di Catania, Italy
| | - A Negret
- Horia Hulubei National Institute for Physics and Nuclear Engineering (IFIN-HH), Bucharest-Magurele, Romania
| | - R Nolte
- Physikalisch-Technische Bundesanstalt (PTB), Braunschweig, Germany
| | - A Oprea
- Horia Hulubei National Institute for Physics and Nuclear Engineering (IFIN-HH), Bucharest-Magurele, Romania
| | | | - A Pavlik
- University of Vienna, Faculty of Physics, Austria
| | - L Piersanti
- INFN, Sezione di Perugia, Italy
- Istituto Nazionale di Astrofisica, Osservatorio Astronomico d'Abruzzo, Italy
| | - M Piscopo
- INFN, Laboratori Nazionali del Sud, Catania, Italy
| | - A Plompen
- European Commission JRC, Institute for Reference Materials and Measurements, Geel, Belgium
| | | | - J Praena
- Universidad de Sevilla, Spain
- Universidad de Granada, Spain
| | | | - D Radeck
- Physikalisch-Technische Bundesanstalt (PTB), Braunschweig, Germany
| | - K Rajeev
- Bhabha Atomic Research Centre (BARC), Mumbai, India
| | - T Rauscher
- Centre for Astrophysics Research, School of Physics, Astronomy and Mathematics, University of Hertfordshire, Hatfield, United Kingdom
| | - R Reifarth
- Johann-Wolfgang-Goethe Universität, Frankfurt, Germany
| | - A Riego-Perez
- Universitat Politecnica de Catalunya, Barcelona, Spain
| | - S Rothe
- University of Manchester, Oxford Road, Manchester, United Kingdom
| | - P Rout
- Bhabha Atomic Research Centre (BARC), Mumbai, India
| | - C Rubbia
- European Organization for Nuclear Research (CERN), Switzerland
| | - J Ryan
- University of Manchester, Oxford Road, Manchester, United Kingdom
| | - M Sabaté-Gilarte
- European Organization for Nuclear Research (CERN), Switzerland
- Universidad de Sevilla, Spain
| | - A Saxena
- Bhabha Atomic Research Centre (BARC), Mumbai, India
| | - J Schell
- European Organization for Nuclear Research (CERN), Switzerland
- Institute for Materials Science and Center for Nanointegration Duisburg-Essen (CENIDE), University of Duisburg-Essen, Essen, Germany
| | - P Schillebeeckx
- European Commission JRC, Institute for Reference Materials and Measurements, Geel, Belgium
| | - S Schmidt
- Johann-Wolfgang-Goethe Universität, Frankfurt, Germany
| | - P Sedyshev
- Joint Institute of Nuclear Research, Dubna, Russia
| | - C Seiffert
- European Organization for Nuclear Research (CERN), Switzerland
| | - A G Smith
- University of Manchester, Oxford Road, Manchester, United Kingdom
| | - N V Sosnin
- University of Manchester, Oxford Road, Manchester, United Kingdom
| | | | - T Stora
- European Organization for Nuclear Research (CERN), Switzerland
| | | | - J L Tain
- Instituto de Física Corpuscular, CSIC, Universidad de Valencia, Spain
| | - A Tarifeño-Saldivia
- Universitat Politecnica de Catalunya, Barcelona, Spain
- Instituto de Física Corpuscular, CSIC, Universidad de Valencia, Spain
| | - L Tassan-Got
- Centre National de la Recherche Scientifique/IN2P3, IPN, Orsay, France
| | - A Tsinganis
- European Organization for Nuclear Research (CERN), Switzerland
| | - S Valenta
- Charles University, Prague, Czech Republic
| | - G Vannini
- INFN, Sezione di Bologna, Italy
- Dipartimento di Fisica e Astronomia, Università di Bologna, Italy
| | | | - P Vaz
- C2TN, Centro de Ciências e Tecnologias Nucleares, Instituto Superior Técnico, Universidade de Lisboa, Portugal
| | | | - V Vlachoudis
- European Organization for Nuclear Research (CERN), Switzerland
| | - R Vlastou
- National Technical University of Athens (NTUA), Greece
| | - A Wallner
- University of Vienna, Faculty of Physics, Austria
- Research School of Physics and Engineering, Australian National University, Canberra, Australia
| | - S Warren
- University of Manchester, Oxford Road, Manchester, United Kingdom
| | - M Weigand
- Johann-Wolfgang-Goethe Universität, Frankfurt, Germany
| | - C Weiß
- European Organization for Nuclear Research (CERN), Switzerland
| | - C Wolf
- Johann-Wolfgang-Goethe Universität, Frankfurt, Germany
| | - P J Woods
- School of Physics and Astronomy, University of Edinburgh, United Kingdom
| | - T Wright
- University of Manchester, Oxford Road, Manchester, United Kingdom
| | - P Žugec
- Department of Physics, Faculty of Science, University of Zagreb, Croatia
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