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Please use this identifier to cite or link to this item: http://repository.iitr.ac.in/handle/123456789/14545
Title: The population of metastable states as a probe of relativistic-energy fragmentation reactions
Authors: Denis Bacelar A.M.
Bruce A.M.
Podolyák Z.
Al-Dahan N.
Górska M.
Lalkovski S.
Pietri S.
Ricciardi M.V.
Algora A.
Alkhomashi N.
Benlliure J.
Boutachkov P.
Bracco A.
Calore E.
Casarejos E.
Cullen I.J.
Deo, A. Y.
Detistov P.
Dombradi Z.
Domingo-Pardo C.
Doncel M.
Farinon F.
Farrelly G.F.
Geissel H.
Gelletly W.
Gerl J.
Goel N.
Grȩbosz J.
Hoischen R.
Kojouharov I.
Kurz N.
Leoni S.
Molina F.
Montanari D.
Morales A.I.
Musumarra A.
Napoli D.R.
Nicolini R.
Nociforo C.
Prochazka A.
Prokopowicz W.
Regan P.H.
Rubio B.
Rudolph D.
Schmidt K.-H.
Schaffner H.
Steer S.J.
Steiger K.
Strmen P.
Swan T.P.D.
Szarka I.
Valiente-Dobón J.J.
Verma S.
Walker P.M.
Weick H.
Wollersheim H.J.
Published in: Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Abstract: Isomeric ratios have been measured for high-spin states in Po84198,200,206,208, At85208,209,210,211, Rn86210,211,212,213,214, Fr87208,211,212,213,214, Ra88210,211,212,214,215, and Ac89215 following the projectile fragmentation of a 1 AGeV 238U beam by a 9Be target at GSI Helmholtzzentrum für Schwerionenforschung. The fragments were separated in the fragment separator (FRS) and identified by means of energy loss and time-of-flight techniques. They were brought to rest at the centre of the RISING gamma-ray detector array and intensities of gamma rays emitted in the decay of isomeric states with half-lives between 100 ns and 40 μs and spin values up to 55/2ℏ were used to obtain the corresponding isomeric ratios. The data are compared to theoretical isomeric ratios calculated in the framework of the abrasion-ablation model. Large experimental enhancements are obtained for high-spin isomers in comparison to expected values. © 2013 Elsevier B.V.
Citation: Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics (2013), 723(43955): 302-306
URI: https://doi.org/10.1016/j.physletb.2013.05.033
http://repository.iitr.ac.in/handle/123456789/14545
Issue Date: 2013
ISSN: 3702693
Author Scopus IDs: 25959919600
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Author Affiliations: Denis Bacelar, A.M., School of Computing, Engineering and Mathematics, University of Brighton, Brighton BN2 4GJ, United Kingdom
Bruce, A.M., School of Computing, Engineering and Mathematics, University of Brighton, Brighton BN2 4GJ, United Kingdom
Podolyák, Z., Department of Physics, University of Surrey, Guildford GU2 7XH, United Kingdom
Al-Dahan, N., Department of Physics, University of Surrey, Guildford GU2 7XH, United Kingdom
Górska, M., GSI Helmholtzzentrum für Schwerionenforschung, Planckstr 1, D-64291 Darmstadt, Germany
Lalkovski, S., School of Computing, Engineering and Mathematics, University of Brighton, Brighton BN2 4GJ, United Kingdom, Department of Physics, University of Sofia, 1164 Sofia, Bulgaria
Pietri, S., GSI Helmholtzzentrum für Schwerionenforschung, Planckstr 1, D-64291 Darmstadt, Germany
Ricciardi, M.V., GSI Helmholtzzentrum für Schwerionenforschung, Planckstr 1, D-64291 Darmstadt, Germany
Algora, A., Instituto de Física Corpuscular, CSIC, Universitat de Valencia, E-40671 Valencia, Spain, Institute of Nuclear Research of the Hungarian Academy of Sciences, P.O. Box 51, Debrecen, 4001, Hungary
Alkhomashi, N., Department of Physics, University of Surrey, Guildford GU2 7XH, United Kingdom
Benlliure, J., Universidad de Santiago de Compostela, 15706, Spain
Boutachkov, P., GSI Helmholtzzentrum für Schwerionenforschung, Planckstr 1, D-64291 Darmstadt, Germany
Bracco, A., Department of Physics, Università degli Studi di Milano and INFN, 20133 Milano, Italy
Calore, E., INFN, Laboratori Nazionali di Legnaro, Italy
Casarejos, E., University of Vigo, E-36310, Vigo, Spain
Cullen, I.J., Department of Physics, University of Surrey, Guildford GU2 7XH, United Kingdom
Deo, A.Y., Department of Physics, University of Surrey, Guildford GU2 7XH, United Kingdom
Detistov, P., Department of Physics, University of Sofia, 1164 Sofia, Bulgaria, Laboratorio de Radiaciones Ionizantes, Universidad de Salamanca, 37008, Spain
Dombradi, Z., Institute of Nuclear Research of the Hungarian Academy of Sciences, P.O. Box 51, Debrecen, 4001, Hungary
Domingo-Pardo, C., GSI Helmholtzzentrum für Schwerionenforschung, Planckstr 1, D-64291 Darmstadt, Germany
Doncel, M., Laboratorio de Radiaciones Ionizantes, Universidad de Salamanca, 37008, Spain
Farinon, F., GSI Helmholtzzentrum für Schwerionenforschung, Planckstr 1, D-64291 Darmstadt, Germany
Farrelly, G.F., Department of Physics, University of Surrey, Guildford GU2 7XH, United Kingdom
Geissel, H., GSI Helmholtzzentrum für Schwerionenforschung, Planckstr 1, D-64291 Darmstadt, Germany
Gelletly, W., Department of Physics, University of Surrey, Guildford GU2 7XH, United Kingdom
Gerl, J., GSI Helmholtzzentrum für Schwerionenforschung, Planckstr 1, D-64291 Darmstadt, Germany
Goel, N., GSI Helmholtzzentrum für Schwerionenforschung, Planckstr 1, D-64291 Darmstadt, Germany
Grȩbosz, J., GSI Helmholtzzentrum für Schwerionenforschung, Planckstr 1, D-64291 Darmstadt, Germany, Niewodniczański Institute of Nuclear Physics, Polish Academy of Science, ul. Radzikowskiego 152, Krakow 31-342, Poland
Hoischen, R., GSI Helmholtzzentrum für Schwerionenforschung, Planckstr 1, D-64291 Darmstadt, Germany, Department of Physics, Lund University, 22100 Lund, Sweden
Kojouharov, I., GSI Helmholtzzentrum für Schwerionenforschung, Planckstr 1, D-64291 Darmstadt, Germany
Kurz, N., GSI Helmholtzzentrum für Schwerionenforschung, Planckstr 1, D-64291 Darmstadt, Germany
Leoni, S., Department of Physics, Università degli Studi di Milano and INFN, 20133 Milano, Italy
Molina, F., Instituto de Física Corpuscular, CSIC, Universitat de Valencia, E-40671 Valencia, Spain, Comisión Chilena de Energía Nuclear, Casilla 188-D, Santiago, Chile
Montanari, D., Department of Physics, Università degli Studi di Milano and INFN, 20133 Milano, Italy
Morales, A.I., Universidad de Santiago de Compostela, 15706, Spain
Musumarra, A., INFN, Laboratori Nazionali del Sud, via S. Sofia 62, 95125 Catania, Italy
Napoli, D.R., INFN, Laboratori Nazionali di Legnaro, Italy
Nicolini, R., Department of Physics, Università degli Studi di Milano and INFN, 20133 Milano, Italy
Nociforo, C., GSI Helmholtzzentrum für Schwerionenforschung, Planckstr 1, D-64291 Darmstadt, Germany
Prochazka, A., GSI Helmholtzzentrum für Schwerionenforschung, Planckstr 1, D-64291 Darmstadt, Germany
Prokopowicz, W., GSI Helmholtzzentrum für Schwerionenforschung, Planckstr 1, D-64291 Darmstadt, Germany
Regan, P.H., Department of Physics, University of Surrey, Guildford GU2 7XH, United Kingdom
Rubio, B., Instituto de Física Corpuscular, CSIC, Universitat de Valencia, E-40671 Valencia, Spain
Rudolph, D., Department of Physics, Lund University, 22100 Lund, Sweden
Schmidt, K.-H., GSI Helmholtzzentrum für Schwerionenforschung, Planckstr 1, D-64291 Darmstadt, Germany
Schaffner, H., GSI Helmholtzzentrum für Schwerionenforschung, Planckstr 1, D-64291 Darmstadt, Germany
Steer, S.J., Department of Physics, University of Surrey, Guildford GU2 7XH, United Kingdom
Steiger, K., Physik-Department E12, Technische Universität München, D-85748 Garching, Germany
Strmen, P., Bratislava Faculty of Mathematics and Physics, Comenius University, 84215 Bratislava, Slovakia
Swan, T.P.D., Department of Physics, University of Surrey, Guildford GU2 7XH, United Kingdom
Szarka, I., Bratislava Faculty of Mathematics and Physics, Comenius University, 84215 Bratislava, Slovakia
Valiente-Dobón, J.J., INFN, Laboratori Nazionali di Legnaro, Italy
Verma, S., Universidad de Santiago de Compostela, 15706, Spain
Walker, P.M., Department of Physics, University of Surrey, Guildford GU2 7XH, United Kingdom
Weick, H., GSI Helmholtzzentrum für Schwerionenforschung, Planckstr 1, D-64291 Darmstadt, Germany
Wollersheim, H.J., GSI Helmholtzzentrum für Schwerionenforschung, Planckstr 1, D-64291 Darmstadt, Germany
Funding Details: This work is supported by the STFC (UK), AWE plc , the Bulgarian National Science Fund ( DMU02/1-06.01.2010 ), the Hungarian Scientific Research Fund ( OTKA K100835 ), the Polish Ministry of Science and Higher Education ( 1-P03B-030-30 and 620/E-77/SPB/GSI/P-03/DWM105/2004-2007 ), the Spanish Ministerio de Educación y Ciencia ( FPA2005-00696 and FPA2006-12431 ), the Swedish Science Council , the DFG ( EXC 153 ), the German Federal Ministry of Education and Research ( 06KY205I ) and EURONS (EU contract number 506065 ).
Corresponding Author: Bruce, A.M.; School of Computing, Engineering and Mathematics, University of Brighton, Brighton BN2 4GJ, United Kingdom; email: alison.bruce@brighton.ac.uk
Appears in Collections:Journal Publications [PH]

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