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Title: An alternative viewpoint on the nuclear structure towards 100Sn: Lifetime measurements in 105Sn

Journal Article · · Physics Letters. B
ORCiD logo [1];  [2];  [3];  [4];  [2];  [5];  [6];  [6];  [2];  [7];  [8];  [2];  [9];  [10];  [10];  [11];  [12];  [13];  [2];  [14] more »;  [2];  [2];  [15];  [16];  [13];  [17];  [18];  [2];  [19];  [17];  [20];  [17];  [21];  [22];  [11];  [23] « less
  1. Istituto Nazionale di Fisica Nucleare (INFN), Padova (Italy). Sezione di Padova; Università di Padova (Italy); Centre National de la Recherche Scientifique (CNRS), Orsay (France). Inst. National de Physique Nucleaire et de Physique des Particules (IN2P3), Laboratoire de Physique des 2 Infinis Irène Joliot-Curie (IJCLab); Université Paris-Saclay, Orsay (France)
  2. Istituto Nazionale di Fisica Nucleare (INFN), Legnaro (Italy). Laboratori Nazionali di Legnaro (INFN-LNL)
  3. Istituto Nazionale di Fisica Nucleare (INFN), Padova (Italy). Sezione di Padova; Univ. di Padova (Italy)
  4. Istituto Nazionale di Fisica Nucleare (INFN), Padova (Italy). Sezione di Padova; Università di Padova (Italy); Istituto Nazionale di Fisica Nucleare (INFN), Legnaro (Italy). Laboratori Nazionali di Legnaro (INFN-LNL)
  5. Centre National de la Recherche Scientifique (CNRS), Strasbourg (France). Inst. National de Physique Nucleaire et de Physique des Particules (IN2P3), Hubert Curien Multidisciplinary Inst. (IPHC); University of Strasbourg (France)
  6. CEA, DAM, DIF, Arpajon (France); Commissariat a l'Energie Atomique (CEA), Bruyères-le-Châtel (France). Laboratoire Matière en Conditions Extrêmes (LMCE); Université Paris-Saclay, Bruyères-le-Châtel (France)
  7. Istituto Nazionale di Fisica Nucleare (INFN), Legnaro (Italy). Laboratori Nazionali di Legnaro (INFN-LNL); University of Surrey, Guildford (United Kingdom)
  8. Istituto Nazionale di Fisica Nucleare (INFN), Legnaro (Italy). Laboratori Nazionali di Legnaro (INFN-LNL); Karadeniz Technical University, Trabzon (Turkey)
  9. Istituto Nazionale di Fisica Nucleare (INFN), Milano (Italy). Sezione di Milano
  10. Università di Padova (Italy); Istituto Nazionale di Fisica Nucleare (INFN), Legnaro (Italy). Laboratori Nazionali di Legnaro (INFN-LNL)
  11. Ruder Bošković Institute, Zagreb (Croatia)
  12. Istituto Nazionale di Fisica Nucleare (INFN), Legnaro (Italy). Laboratori Nazionali di Legnaro (INFN-LNL); Technical University of Darmstadt (Germany)
  13. Spanish National Research Council and Polytechnic University of Valencia, Valencia (Spain). Inst. de Fisica Corpuscular (IFIC)
  14. GSI-Helmholtzzentrum fur Schwerionenforschung, Darmstadt (Germany)
  15. GSI-Helmholtzzentrum fur Schwerionenforschung, Darmstadt (Germany); Technical University of Darmstadt (Germany)
  16. Istituto Nazionale di Fisica Nucleare (INFN), Legnaro (Italy). Laboratori Nazionali di Legnaro (INFN-LNL); University of Jyvaskyla (Finland)
  17. Istituto Nazionale di Fisica Nucleare (INFN), Padova (Italy). Sezione di Padova; Università di Padova (Italy)
  18. Istituto Nazionale di Fisica Nucleare (INFN), Legnaro (Italy). Laboratori Nazionali di Legnaro (INFN-LNL); Università di Padova (Italy)
  19. Istituto Nazionale di Fisica Nucleare (INFN), Padova (Italy). Sezione di Padova
  20. stituto Nazionale di Fisica Nucleare (INFN), Legnaro (Italy). Laboratori Nazionali di Legnaro (INFN-LNL)
  21. Commissariat a l'Energie Atomique et aux Energies Alternatives (CEA), Gif-sur-Yvette (France). Département de Physique Nucléaire (DPhN), Institut de Recherche sur les lois Fondamentales de l'Univers (IRFU); Université Paris-Saclay, Gif-sur-Yvette (France); Argonne National Laboratory (ANL), Argonne, IL (United States)
  22. Istituto Nazionale di Fisica Nucleare (INFN), Padova (Italy). Sezione di Padova; Università di Padova (Italy); Extreme Light Infrastructure - Nuclear Physics (ELI-NP), Bucharest-Magurele (Romania); Horia Hulubei National Institute for Physics and Nuclear Engineering, Bucharest-Magurele (Romania)
  23. Istituto Nazionale di Fisica Nucleare (INFN), Legnaro (Italy). Laboratori Nazionali di Legnaro (INFN-LNL); Università of Ferrara (Italy)
+ Show Author Affiliations

This work aims at presenting an alternative approach to the long standing problem of the B(E2) values in Sn isotopes in the vicinity of the N=Z double-magic nucleus 100Sn, until now predominantly measured with relativistic and intermediate-energy Coulomb excitation reactions. The direct measurement of the lifetime of low-lying excited states in odd-even Sn isotopes provides a new and precise guidance for the theoretical description of the nuclear structure in this region. Lifetime measurements have been performed in 105Sn for the first time with the coincidence Recoil Distance Doppler Shift technique. The lifetime results for the $$7/2^+_1$$ first excited state and the $$11/2^+_1$$ state, $$2^+ (^{104}$$Sn) Ⓧ $$v1g_{7/2}$$ multiplet member, are discussed in comparison with state-of-the-art shell model and mean field calculations, highlighting the crucial contribution of proton excitation across the core of 100Sn. The reduced transition probability B(E2) of the $$11/2^+_1$$ core-coupled state points out an enhanced staggering with respect to the B(E2; $$2^+_1$$ → $$0^+_1$$) in the even-mass 104Sn and 106Sn isotopes.

Research Organization:
Argonne National Laboratory (ANL), Argonne, IL (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Nuclear Physics (NP); Agence Nationale de la Recherche (ANR); Agencia Estatal de Investigacion (AEI); Generalitat Valenciana
Grant/Contract Number:
AC02-06CH11357
OSTI ID:
2525887
Journal Information:
Physics Letters. B, Journal Name: Physics Letters. B Vol. 845; ISSN 0370-2693
Publisher:
ElsevierCopyright Statement
Country of Publication:
United States
Language:
English

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Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
lifetime measurements
neutron-deficient isotopes
nuclear structure
odd-mass nuclei
transition probabilities
γ-ray spectroscopy