A shell-model description of 0+ intruder states in even-even nuclei |
| |
| Affiliation: | 1. Department of Physics and Astrophysics, University of Delhi, Delhi 110007, India;2. Inter University Accelerator Centre, Aruna Asaf Ali Marg, New Delhi 110067, India;3. Department of Physics, Panjab University, Chandigarh 160014, India;1. Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali di Legnaro, Legnaro, 35020, Italy;2. Istituto Nazionale di Fisica Nucleare, Sezione di Milano, Milano, 20133, Italy;3. Instituto de Física Corpuscular, CSIC-Universitat de València, València, 46980, Spain;4. Dipartimento di Fisica dell''Università degli Studi di Padova, Padova, 35131, Italy;5. Istituto Nazionale di Fisica Nucleare, Sezione di Padova, Padova, 35131, Italy;6. IGFAE, Universidade de Santiago de Compostela, Santiago de Compostela, 15782, Spain;7. GSI Helmholtzzentrum für Schwerionenforschung, Darmstadt, 64291, Germany;8. Dipartimento di Fisica dell''Università degli Studi di Milano, Milano, 20133, Italy;9. School of Computing, Engineering and Mathematics, University of Brighton, Brighton, BN2 4GJ, United Kingdom;10. Grupo de Física Nuclear, Universidad de Salamanca, Salamanca, 37008, Spain;11. EEI, Universidade de Vigo, Vigo, 36310, Spain;12. Niewodniczanski Institute of Nuclear Physics, Polish Academy of Science, Krakow, 31-342, Poland;13. Physik Department, Technische Universität München, Garching, 85748, Germany;14. Department of Physics and Astrophysics, University of Delhi, Delhi, 110007, India;15. Institut für Kernphysik, Universität zu Köln, Köln, 50937, Germany;p. Faculty of Physics, University of Warsaw, Warsaw, 00681, Poland;q. Department of Physics, University of Surrey, Guildford, GU2 7XH, United Kingdom;r. Department of Physics, Lund University, Lund, 22100, Sweden;s. Faculty of Mathematics and Physics, Comenius University, Bratislava, 84215, Slovakia;t. CERN, Geneva, 1211, Switzerland;u. Grand Accélérateur National d''Ions Lourds, CEA/DRF-CNRS/IN2P3, Caen, 14076, France;1. Department of Physics, Florida State University, Tallahassee, FL 32306, USA;2. Facility for Rare Isotope Beams, Michigan State University, East Lansing, MI 48824, USA;3. Department of Physics and Astronomy, Michigan State University, East Lansing, MI 48824, USA;4. Department of Physics and Astronomy, Ursinus College, Collegeville, PA 19426, USA;1. TRIUMF, Vancouver, BC V6T2A3, Canada;2. Department of Physics and Astronomy, Appalachian State University, Boone, NC 28608, USA;3. Department of Chemistry, Simon Fraser University, Burnaby, BC V5A1S6, Canada;4. Department of Physics and Astronomy, University of Calgary, Calgary, AB T2N 1N4, Canada;5. Physikalisches Institut, Justus-Liebig-Universiteät, Gießen 35392, Germany;6. Department of Physics, Mcgill University, Montreal, QC H3A0G4, Canada;7. Department of Physics and Astronomy, University of Manitoba, Winnipeg, MB R3T 2N2, Canada;8. University of Heidelberg, Philosophenweg 12, Heidelberg 69120, Germany;9. Department of Physics, University of York, York YO10 5DD, UK;10. Department of Physics and Astronomy, University of British Columbia, Vancouver, BC V6T 1Z4, Canada;11. Université Paris-Saclay, IJCLab-IN2P3/CNRS, France;12. Technische Universität Darmstadt, Department of Physics, Darmstadt 64289, Germany;13. ExtreMe Matter Institute EMMI, GSI Helmholtzzentrum für Schwerionenforschung GmbH, Darmstadt 64291, Germany;14. CERN, 1211 Geneva 23, Switzerland;15. Max-Planck-Institut für Kernphysik, Heidelberg 69117, Germany;p. School of Physics and Astronomy, University of Edinburgh, Edinburgh EH8 9YL, UK;q. Department of Physics, Colorado School of Mines, Golden, CO 80401, USA;r. Department of Physics and Astronomy, University of Victoria, Victoria, BC V8P 5C2, Canada |
| |
| Abstract: | Starting from the nuclear shell structure in medium-heavy and heavy nuclei, the excitation energy for low-lying 0+ intruder states is studied. Taking as a simplified model two particle-two hole (2p-2h) excitations across closed shells, the effects of the pairing and the proton-neutron (monopole and quadrupole component) residual interaction on the unperturbed energies are calculated. Application to major closed-shell (fZ = 50, Z = 82) and to subshell (Z = 40, Z = 64) regions is performed. We especially concentrate on 0+ intruder states in the even-even Pb nuclei. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
