Physics Letters B (Oct 2024)
Collectivity at the prolate-oblate transition: The 21+ lifetime of 190W
- E. Şahin,
- V. Werner,
- A.K. Mistry,
- M. Rudigier,
- K. Nomura,
- J. Jolie,
- N. Pietralla,
- P.H. Regan,
- G. Ağgez,
- H.M. Albers,
- U. Ahmed,
- Ö. Aktaş,
- A. Algora,
- S. Alhomaidhi,
- C. Appleton,
- T. Arıcı,
- M. Armstrong,
- A. Banerjee,
- J. Benito,
- G. Benzoni,
- A. Blazhev,
- P. Boutachkov,
- A.M. Bruce,
- B. Cederwall,
- M.M.R. Chishti,
- M.L. Cortés,
- F. Crespi,
- B. Das,
- T. Davinson,
- T. Dickel,
- M. Doncel,
- A. Ertoprak,
- A. Esmaylzadeh,
- L.M. Fraile,
- E.R. Gamba,
- J. Gerl,
- M. Górska,
- J. Ha,
- E. Haettner,
- O. Hall,
- H. Heggen,
- C. Hornung,
- N. Hubbard,
- S. Jazrawi,
- P.R. John,
- C.E. Jones,
- V. Karayonchev,
- E. Kazantseva,
- R. Kern,
- L. Knafla,
- I. Kojouharov,
- P. Koseoglou,
- G. Kosir,
- D. Kostyleva,
- N. Kurz,
- N. Kuzminchuk,
- M. Llanos-Expósito,
- R. Lozeva,
- D. Mengoni,
- T.J. Mertzimekis,
- M. Mikolajczuk,
- A.I. Morales,
- I. Mukha,
- J.R. Murias,
- B.S. Nara-Singh,
- S.E.A. Orrigo,
- J. Pellumaj,
- S. Pelonis,
- S. Pietri,
- S. Pigliapoco,
- Zs. Podolyák,
- M. Polettini,
- K. Rezynkina,
- H.A. Rösch,
- H. Schaffner,
- Ch. Scheidenberger,
- L. Sexton,
- P.-A. Söderström,
- Y.K. Tanaka,
- J.J. Valiente-Dobón,
- P. Vasileiou,
- J. Vasiljević,
- J. Vesic,
- H. Weick,
- J. Wiederhold,
- A. Yaneva,
- G. Zhang,
- J. Zhao,
- A. Zyriliou
Affiliations
- E. Şahin
- Technische Universität Darmstadt, Institut für Kernphysik, D-64289 Darmstadt, Germany; GSI Helmholtzzentrum für Schwerionenforschung, D-64291 Darmstadt, Germany; Helmholtz Forschungsakademie Hessen für FAIR (HFHF), D-64289 Darmstadt, Germany; Corresponding authors.
- V. Werner
- Technische Universität Darmstadt, Institut für Kernphysik, D-64289 Darmstadt, Germany; Helmholtz Forschungsakademie Hessen für FAIR (HFHF), D-64289 Darmstadt, Germany; Corresponding authors.
- A.K. Mistry
- Technische Universität Darmstadt, Institut für Kernphysik, D-64289 Darmstadt, Germany; GSI Helmholtzzentrum für Schwerionenforschung, D-64291 Darmstadt, Germany; Helmholtz Forschungsakademie Hessen für FAIR (HFHF), D-64289 Darmstadt, Germany
- M. Rudigier
- Technische Universität Darmstadt, Institut für Kernphysik, D-64289 Darmstadt, Germany
- K. Nomura
- Department of Physics, Hokkaido University, Sapporo, 060-0810, Japan
- J. Jolie
- Institut für Kernphysik, University of Cologne, D-50937 Cologne, Germany
- N. Pietralla
- Technische Universität Darmstadt, Institut für Kernphysik, D-64289 Darmstadt, Germany
- P.H. Regan
- Department of Physics, University of Surrey, Guildford, GU2 7XH, UK; Medical Marine and Nuclear Department, National Physical Laboratory, Teddington, Middlesex, TW11 0LW, UK
- G. Ağgez
- Physics Department, Faculty of Science, Istanbul University, 34459 Vezneciler, Istanbul, Turkey
- H.M. Albers
- GSI Helmholtzzentrum für Schwerionenforschung, D-64291 Darmstadt, Germany
- U. Ahmed
- Technische Universität Darmstadt, Institut für Kernphysik, D-64289 Darmstadt, Germany; Helmholtz Forschungsakademie Hessen für FAIR (HFHF), D-64289 Darmstadt, Germany
- Ö. Aktaş
- Department of Physics, KTH Royal Institute of Technology, SE-10691 Stockholm, Sweden
- A. Algora
- Instituto de Fisica Corpuscular, CSIC-Universidad de Valencia, E-46071, Valencia, Spain; Institute of Nuclear Research, Debrecen H-4026, Hungary
- S. Alhomaidhi
- Technische Universität Darmstadt, Institut für Kernphysik, D-64289 Darmstadt, Germany; GSI Helmholtzzentrum für Schwerionenforschung, D-64291 Darmstadt, Germany; Helmholtz Forschungsakademie Hessen für FAIR (HFHF), D-64289 Darmstadt, Germany; King Abdulaziz City for Science and Technology (KACST), P.O. Box 6086, Riyadh 11442, Saudi Arabia
- C. Appleton
- School of Physics and Astronomy, University of Edinburgh, Edinburgh, EH9 3FD, UK
- T. Arıcı
- Physics Department, Faculty of Science, Istanbul University, 34459 Vezneciler, Istanbul, Turkey
- M. Armstrong
- GSI Helmholtzzentrum für Schwerionenforschung, D-64291 Darmstadt, Germany; Institut für Kernphysik, University of Cologne, D-50937 Cologne, Germany
- A. Banerjee
- GSI Helmholtzzentrum für Schwerionenforschung, D-64291 Darmstadt, Germany
- J. Benito
- Grupo de Física Nuclear and IPARCOS, Universidad Complutense de Madrid, CEI Moncloa, E-28040, Madrid, Spain
- G. Benzoni
- INFN Sezione di Milano, I-20133 Milano, Italy
- A. Blazhev
- Institut für Kernphysik, University of Cologne, D-50937 Cologne, Germany
- P. Boutachkov
- GSI Helmholtzzentrum für Schwerionenforschung, D-64291 Darmstadt, Germany
- A.M. Bruce
- School of Computing, Engineering and Mathematics, University of Brighton, Lewes Road, Brighton, BN2 4GJ, UK
- B. Cederwall
- Department of Physics, KTH Royal Institute of Technology, SE-10691 Stockholm, Sweden
- M.M.R. Chishti
- Department of Physics, University of Surrey, Guildford, GU2 7XH, UK
- M.L. Cortés
- Technische Universität Darmstadt, Institut für Kernphysik, D-64289 Darmstadt, Germany; GSI Helmholtzzentrum für Schwerionenforschung, D-64291 Darmstadt, Germany
- F. Crespi
- INFN Sezione di Milano, I-20133 Milano, Italy; Dipartimento di Fisica, Università degli Studi di Milano, Milano, Italy
- B. Das
- Department of Physics, KTH Royal Institute of Technology, SE-10691 Stockholm, Sweden
- T. Davinson
- School of Physics and Astronomy, University of Edinburgh, Edinburgh, EH9 3FD, UK
- T. Dickel
- II. Physikalisches Institut, Justus-Liebig-Universität, Heinrich-Buff-Ring 16, D-35392 Gießen, Germany
- M. Doncel
- Department of Physics, Stockholm University, SE-10691 Stockholm, Sweden
- A. Ertoprak
- Physics Department, Faculty of Science, Istanbul University, 34459 Vezneciler, Istanbul, Turkey; Department of Physics, KTH Royal Institute of Technology, SE-10691 Stockholm, Sweden
- A. Esmaylzadeh
- Institut für Kernphysik, University of Cologne, D-50937 Cologne, Germany
- L.M. Fraile
- Grupo de Física Nuclear and IPARCOS, Universidad Complutense de Madrid, CEI Moncloa, E-28040, Madrid, Spain
- E.R. Gamba
- INFN Sezione di Milano, I-20133 Milano, Italy; Dipartimento di Fisica, Università degli Studi di Milano, Milano, Italy
- J. Gerl
- GSI Helmholtzzentrum für Schwerionenforschung, D-64291 Darmstadt, Germany
- M. Górska
- GSI Helmholtzzentrum für Schwerionenforschung, D-64291 Darmstadt, Germany
- J. Ha
- INFN Sezione di Padova, Padova, Italy; Dipartimento di Fisica e Astronomia, Universitàt di Padova, Padova, Italy
- E. Haettner
- GSI Helmholtzzentrum für Schwerionenforschung, D-64291 Darmstadt, Germany
- O. Hall
- School of Physics and Astronomy, University of Edinburgh, Edinburgh, EH9 3FD, UK
- H. Heggen
- GSI Helmholtzzentrum für Schwerionenforschung, D-64291 Darmstadt, Germany
- C. Hornung
- GSI Helmholtzzentrum für Schwerionenforschung, D-64291 Darmstadt, Germany
- N. Hubbard
- Technische Universität Darmstadt, Institut für Kernphysik, D-64289 Darmstadt, Germany; GSI Helmholtzzentrum für Schwerionenforschung, D-64291 Darmstadt, Germany; Helmholtz Forschungsakademie Hessen für FAIR (HFHF), D-64289 Darmstadt, Germany
- S. Jazrawi
- Department of Physics, University of Surrey, Guildford, GU2 7XH, UK; Medical Marine and Nuclear Department, National Physical Laboratory, Teddington, Middlesex, TW11 0LW, UK
- P.R. John
- Technische Universität Darmstadt, Institut für Kernphysik, D-64289 Darmstadt, Germany
- C.E. Jones
- School of Computing, Engineering and Mathematics, University of Brighton, Lewes Road, Brighton, BN2 4GJ, UK
- V. Karayonchev
- Institut für Kernphysik, University of Cologne, D-50937 Cologne, Germany
- E. Kazantseva
- GSI Helmholtzzentrum für Schwerionenforschung, D-64291 Darmstadt, Germany
- R. Kern
- Technische Universität Darmstadt, Institut für Kernphysik, D-64289 Darmstadt, Germany
- L. Knafla
- Institut für Kernphysik, University of Cologne, D-50937 Cologne, Germany
- I. Kojouharov
- GSI Helmholtzzentrum für Schwerionenforschung, D-64291 Darmstadt, Germany
- P. Koseoglou
- Technische Universität Darmstadt, Institut für Kernphysik, D-64289 Darmstadt, Germany
- G. Kosir
- Jozef Stefan Institute, Jamova cesta 39, 1000 Ljubljana, Slovenia; University of Ljubljana, Faculty of Mathematics and Physics, Jamova cesta 39, 1000 Ljubljana, Slovenia
- D. Kostyleva
- GSI Helmholtzzentrum für Schwerionenforschung, D-64291 Darmstadt, Germany
- N. Kurz
- GSI Helmholtzzentrum für Schwerionenforschung, D-64291 Darmstadt, Germany
- N. Kuzminchuk
- GSI Helmholtzzentrum für Schwerionenforschung, D-64291 Darmstadt, Germany
- M. Llanos-Expósito
- Grupo de Física Nuclear and IPARCOS, Universidad Complutense de Madrid, CEI Moncloa, E-28040, Madrid, Spain
- R. Lozeva
- University Paris-Saclay, IJCLab, CNRS/IN2P3, F-91405 Orsay, France
- D. Mengoni
- INFN Sezione di Padova, Padova, Italy; Dipartimento di Fisica e Astronomia, Universitàt di Padova, Padova, Italy
- T.J. Mertzimekis
- National & Kapodistrian University of Athens, Zografou Campus, Athens, GR-15784, Greece
- M. Mikolajczuk
- GSI Helmholtzzentrum für Schwerionenforschung, D-64291 Darmstadt, Germany; Faculty of Physics, University of Warsaw, Warsaw, 02093, Poland
- A.I. Morales
- Instituto de Fisica Corpuscular, CSIC-Universidad de Valencia, E-46071, Valencia, Spain
- I. Mukha
- GSI Helmholtzzentrum für Schwerionenforschung, D-64291 Darmstadt, Germany
- J.R. Murias
- Grupo de Física Nuclear and IPARCOS, Universidad Complutense de Madrid, CEI Moncloa, E-28040, Madrid, Spain
- B.S. Nara-Singh
- SUPA, School of Computing, Engineering and Physical Sciences, University of the West of Scotland, Paisley, UK
- S.E.A. Orrigo
- Instituto de Fisica Corpuscular, CSIC-Universidad de Valencia, E-46071, Valencia, Spain
- J. Pellumaj
- INFN Laboratori Nazionali di Legnaro, Legnaro, Italy
- S. Pelonis
- KU Leuven, Instituut voor Kern- en Stralingsfysica, Leuven, Belgium
- S. Pietri
- GSI Helmholtzzentrum für Schwerionenforschung, D-64291 Darmstadt, Germany
- S. Pigliapoco
- INFN Sezione di Padova, Padova, Italy
- Zs. Podolyák
- Department of Physics, University of Surrey, Guildford, GU2 7XH, UK
- M. Polettini
- INFN Sezione di Milano, I-20133 Milano, Italy; Dipartimento di Fisica, Università degli Studi di Milano, Milano, Italy
- K. Rezynkina
- INFN Sezione di Padova, Padova, Italy
- H.A. Rösch
- Technische Universität Darmstadt, Institut für Kernphysik, D-64289 Darmstadt, Germany; GSI Helmholtzzentrum für Schwerionenforschung, D-64291 Darmstadt, Germany
- H. Schaffner
- GSI Helmholtzzentrum für Schwerionenforschung, D-64291 Darmstadt, Germany
- Ch. Scheidenberger
- II. Physikalisches Institut, Justus-Liebig-Universität, Heinrich-Buff-Ring 16, D-35392 Gießen, Germany; Helmholtz Research Academy Hesse for FAIR (HFHF), GSI Helmholtz Center for Heavy Ion Research, 35392 Giessen, Germany
- L. Sexton
- School of Physics and Astronomy, University of Edinburgh, Edinburgh, EH9 3FD, UK
- P.-A. Söderström
- Extreme Light Infrastructure-Nuclear Physics, Horia Hulubei National Institute for Physics and Nuclear Engineering, Bucharest-Măgurele, Romania
- Y.K. Tanaka
- High Energy Nuclear Physics Laboratory, RIKEN, Wako, Japan
- J.J. Valiente-Dobón
- INFN Laboratori Nazionali di Legnaro, Legnaro, Italy
- P. Vasileiou
- National & Kapodistrian University of Athens, Zografou Campus, Athens, GR-15784, Greece
- J. Vasiljević
- Department of Physics, KTH Royal Institute of Technology, SE-10691 Stockholm, Sweden
- J. Vesic
- Jozef Stefan Institute, Jamova cesta 39, 1000 Ljubljana, Slovenia
- H. Weick
- GSI Helmholtzzentrum für Schwerionenforschung, D-64291 Darmstadt, Germany
- J. Wiederhold
- Technische Universität Darmstadt, Institut für Kernphysik, D-64289 Darmstadt, Germany
- A. Yaneva
- GSI Helmholtzzentrum für Schwerionenforschung, D-64291 Darmstadt, Germany; Institut für Kernphysik, University of Cologne, D-50937 Cologne, Germany
- G. Zhang
- INFN Sezione di Padova, Padova, Italy; Dipartimento di Fisica e Astronomia, Universitàt di Padova, Padova, Italy
- J. Zhao
- GSI Helmholtzzentrum für Schwerionenforschung, D-64291 Darmstadt, Germany; School of Physics, Peking University, Beijing 100871, China
- A. Zyriliou
- National & Kapodistrian University of Athens, Zografou Campus, Athens, GR-15784, Greece
- Journal volume & issue
-
Vol. 857
p. 138976
Abstract
The neutron-rich rare isotope 190W is discussed as a candidate for a prolate-oblate transitional nucleus with maximum γ-softness. The collectivity of this isotope is assessed for the first time by the measurement of the reduced E2 transition probability of its first 2+ state to the ground state. The experiment employed the FAst TIming Array (FATIMA), comprised of 36 LaBr3(Ce) scintillators, which was part of the DESPEC setup at GSI, Darmstadt. The 41+ and 21+ states of 190W were populated subsequently to the decay of its 127(12) μs isomeric Jπ=10− state. The mean lifetime of the 21+ state was determined to be τ=274(28) ps, which corresponds to a B(E2;21+→01+) value of 95(10) W.u. The results motivated a revision of previous calculations within an energy-density functional-based interacting boson model-2 approach, yielding E2 transition properties and spectroscopic quadrupole moments for tungsten isotopes. From comparison to theory, the new data suggest that 190W is at the transition from prolate to oblate structure along the W isotopic chain, which had previously been discussed as a nuclear shape-phase transition.
