Isospin dependence of proton and neutron radii within relativistic mean field theory |
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| Institution: | 1. Petersburg Nuclear Physics Institute, National Research Centre Kurchatov Institute, Gatchina, 188300 Russia;2. Dipartimento di Fisica, Università degli Studi di Milano and INFN, Sezione di Milano, Via Celoria 16, 20133 Milano, Italy;3. GSI Helmholtzzentrum für Schwerionenforschung GmbH, 64291 Darmstadt, Germany;1. Nano and Molecular Systems Research Unit (NANOMO), University of Oulu, P.O. Box 3000, FIN-90014, Finland;2. Department of Physics, East China University of Science and Technology, Shanghai, 200237, People’s Republic of China;3. Institute of Chemistry, Vilnius University, Naugarduko 24, LT-03225, Vilnius, Lithuania;4. Institute of Solid State Physics, University of Latvia, 8 Kengaraga, LV-1063, Riga, Latvia;5. National University of Science and Technology MISiS, Leninsky Prospekt, Moscow, 119049, Russia;6. MAX IV Laboratory, Lund University, P.O. Box 118, SE-221 00, Lund, Sweden;1. Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China;2. Institute of Physical and Chemical Research (RIKEN), Wako, Saitama 351-0198, Japan;3. Department of Physics, Rikkyo University, Tokyo 171-8501, Japan;4. Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China;5. Institute of Physics, University of Tsukuba, Ibaraki 305-8571, Japan;6. Department of Physics, Tohoku University, Miyagi 980-8578, Japan;7. Center for Nuclear Study (CNS), University of Tokyo, Saitama 351-0198, Japan;8. Department of Physics, University of Tokyo, Tokyo 113-0033, Japan;1. Department of Physics and Collaborative Innovation Center of Quantum Matter, Tsinghua University, Beijing 100084, China;2. China Institute of Atomic Energy, P.O. Box 275(18), Beijing 102413, China;3. Uniwersytet Marii Curie Skłodowskiej, Katedra Fizyki Teoretycznej, 20031 Lublin, Poland |
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| Abstract: | The proton and neutron radii of even-even β-stable nuclei with A ⩾ 40 and a few chains of isotopes with Z = 50, 56, 82, 94 protons and isotones with N = 50, 82, 126 neutrons are analyzed. The average isospin dependence of the radii evaluated within the relativistic mean field theory is studied. A simple, phenomenological formula for neutron radii is proposed. |
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