The population of metastable states as a probe of relativistic-energy fragmentation reactions

A. M. Denis Bacelar; A. M. Bruce; Zs Podolyak; N. Al-Dahan; M. Gorska; S. Lalkovski; S. Pietri; M. V. Ricciardi; A. Algora; N. Alkhomashi; J. Benlliure; P. Boutachkov; A. Bracco; E. Calore; E. Casarejos; I. J. Cullen; A. Y. Deo; P. Detistov; Zs Dombradi; C. Domingo-Pardo; M. Doncel; F. Farinon; G. F. Farrelly; H. Geissel; W. Gelletly; J. Gerl; N. Goel; J. Grebosz; R. Hoischen; I. Kojouharov; N. Kurz; S. Leoni; F. Molina; D. Montanari; A. I. Morales; A. Musumarra; D. R. Napoli; R. Nicolini; C. Nociforo; A. Prochazka; W. Prokopowicz; P. H. Regan; B. Rubio; D. Rudolph; K. -H. Schmidt; H. Schaffner; S. J. Steer; K. Steiger; P. Strmen; T. P. D. Swan; I. Szarka; J. J. Valiente-Dobon; S. Verma; P. M. Walker; H. Weick; H. J. Wollersheim

doi:10.1016/j.physletb.2013.05.033

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The population of metastable states as a probe of relativistic-energy fragmentation reactions

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The population of metastable states as a probe of relativistic-energy fragmentation reactions

A. M. Denis Bacelar, A. M. Bruce, Zs Podolyak, N. Al-Dahan, M. Gorska, S. Lalkovski, S. Pietri, M. V. Ricciardi, A. Algora, N. Alkhomashi, …

Physics letters. B, Vol.723(4-5), pp.302-306

25/06/2013

DOI: https://doi.org/10.1016/j.physletb.2013.05.033

Abstract

Astronomy & Astrophysics

Physical Sciences

Physics

Physics, Nuclear

Physics, Particles & Fields

Science & Technology

Isomeric ratios have been measured for high-spin states in Po-198,200,206,208(84), At-208,209,210,211(85), Rn-210,211,212,213,214(86), Fr-208,211,212,213,214(87), Ra-210,211,212,214,215(88), and Ac-215(89) following the projectile fragmentation of a 1 AGeV U-238 beam by a Be-9 target at GSI Helmholtzzentrum fur 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 mu s and spin values up to 55/2 (h) over bar 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. (C) 2013 Elsevier B.V. All rights reserved.

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Title: The population of metastable states as a probe of relativistic-energy fragmentation reactions
Creators - without role: A. M. Denis Bacelar - University of Brighton
A. M. Bruce - University of Brighton
Zs Podolyak - University of Surrey
N. Al-Dahan - University of Surrey
M. Gorska - GSI Helmholtz Centre for Heavy Ion Research
S. Lalkovski - University of Brighton
S. Pietri - GSI Helmholtz Centre for Heavy Ion Research
M. V. Ricciardi - GSI Helmholtz Centre for Heavy Ion Research
A. Algora - Universitat de València
N. Alkhomashi - University of Surrey
J. Benlliure - Universidade de Santiago de Compostela
P. Boutachkov - GSI Helmholtz Centre for Heavy Ion Research
A. Bracco - University of Milan
E. Calore - Legnaro National Laboratories
E. Casarejos - Universidade de Vigo
I. J. Cullen - University of Surrey
A. Y. Deo - University of Surrey
P. Detistov - Sofia University "St. Kliment Ohridski"
Zs Dombradi - Hungarian Academy of Sciences
C. Domingo-Pardo - GSI Helmholtz Centre for Heavy Ion Research
M. Doncel - GSI Helmholtz Centre for Heavy Ion Research
F. Farinon - GSI Helmholtzzentrum Schwerionenforsch, D-64291 Darmstadt, Germany
G. F. Farrelly - University of Surrey
H. Geissel - GSI Helmholtz Centre for Heavy Ion Research
W. Gelletly - University of Surrey
J. Gerl - University of Surrey
N. Goel - GSI Helmholtz Centre for Heavy Ion Research
J. Grebosz - University of Surrey
R. Hoischen - GSI Helmholtz Centre for Heavy Ion Research
I. Kojouharov - GSI Helmholtz Centre for Heavy Ion Research
N. Kurz - GSI Helmholtz Centre for Heavy Ion Research
S. Leoni - Hungarian Academy of Sciences
F. Molina - Universitat de València
D. Montanari - GSI Helmholtz Centre for Heavy Ion Research
A. I. Morales - Universidade de Santiago de Compostela
A. Musumarra - Ist Nazl Fis Nucl, Lab Nazl Sud, I-95125 Catania, Italy
D. R. Napoli - Ist Nazl Fis Nucl, Lab Nazl Legnaro, Legnaro, Italy
R. Nicolini - GSI Helmholtz Centre for Heavy Ion Research
C. Nociforo - GSI Helmholtz Centre for Heavy Ion Research
A. Prochazka - GSI Helmholtzzentrum Schwerionenforsch, D-64291 Darmstadt, Germany
W. Prokopowicz - GSI Helmholtzzentrum Schwerionenforsch, D-64291 Darmstadt, Germany
P. H. Regan - University of Surrey
B. Rubio - Hungarian Academy of Sciences
D. Rudolph - GSI Helmholtz Centre for Heavy Ion Research
K. -H. Schmidt - University of Surrey
H. Schaffner - GSI Helmholtz Centre for Heavy Ion Research
S. J. Steer - University of Surrey
K. Steiger - GSI Helmholtz Centre for Heavy Ion Research
P. Strmen - GSI Helmholtz Centre for Heavy Ion Research
T. P. D. Swan - University of Surrey
I. Szarka - GSI Helmholtz Centre for Heavy Ion Research
J. J. Valiente-Dobon - Ist Nazl Fis Nucl, Lab Nazl Legnaro, Legnaro, Italy
S. Verma - Hungarian Academy of Sciences
P. M. Walker - University of Surrey
H. Weick - GSI Helmholtz Centre for Heavy Ion Research
H. J. Wollersheim - GSI Helmholtzzentrum Schwerionenforsch, D-64291 Darmstadt, Germany
Publication Details: Physics letters. B, Vol.723(4-5), pp.302-306
Publisher: Elsevier
Number of pages: 5
Grant note: DMU02/1-06.01.2010 / Bulgarian National Science Fund; National Science Fund of Bulgaria STFC (UK); UK Research & Innovation (UKRI); Science & Technology Facilities Council (STFC) EXC 153 / DFG; German Research Foundation (DFG) OTKA K100835 / Hungarian Scientific Research Fund; Orszagos Tudomanyos Kutatasi Alapprogramok (OTKA) FPA2005-00696; FPA2006-12431 / Spanish Ministerio de Educacion y Ciencia; Spanish Government Swedish Science Council 1-P03B-030-30; 620/E-77/SPB/GSI/P-03/DWM105/2004-2007 / Polish Ministry of Science and Higher Education; Ministry of Science and Higher Education, Poland ST/J000051/1; ST/H004106/1; EP/D003628/1; ST/J000132/1; ST/F500613/1 / Science and Technology Facilities Council; UK Research & Innovation (UKRI); Science & Technology Facilities Council (STFC) AWE plc 06KY205I / German Federal Ministry of Education and Research; Federal Ministry of Education & Research (BMBF) ST/F500613/1; ST/J000051/1; ST/J000132/1; EP/D003628/1; ST/H004106/1 / STFC; UK Research & Innovation (UKRI); Science & Technology Facilities Council (STFC) 506065 / EURONS (EU); European Commission
Identifiers: 9918638708331
Academic Unit: King Abdulaziz City for Science & Technology
Language: English
Resource Type: Journal article