A Skyrme parametrization from subnuclear to neutron star densities |
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| Institution: | 1. Institut de Physique Nucléaire de Lyon, CNRS-IN2P3 / Université Claude Bernard Lyon 1, 43, Bd. du 11.11.18, 69622 Villeurbanne Cedex, France;2. Service de Physique Théorique, CEA Saclay, 91191 Gif sur Yvette Cedex, France;3. N. Copernicus Astronomical Center, Polish Academy of Sciences, Bartycka 18, PL-00-716 Warszawa, Poland;1. National Superconducting Cyclotron Laboratory and Department of Physics and Astronomy, Michigan State University, East Lansing, MI 48824, USA;2. China Institute of Atomic Energy, Beijing, 102413, China;3. Department of Physics, Western Michigan University, Kalamazoo, MI 49008, USA;4. Department of Physics, The University of Hong Kong, Hong Kong, China;5. Variable Energy Cyclotron Centre, 1/AF Bidhannagar, Kolkata 700064, India;6. Texas Advanced Computing Center, University of Texas, Austin, TX 78758, USA;1. Institute of Nuclear Physics, PAN, 31-342 Kraków, Poland;2. Department of Physics and Astronomy, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA;3. Triangle Universities Nuclear Laboratory, Duke University, Durham, NC 27708, USA;4. Physics Division, Argonne National Laboratory, Argonne, IL 60439, USA;5. Center for Nuclear Study, University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113-0033, Japan;6. Department of Chemistry and Biochemistry, University of Maryland, College Park, MD 20742, USA;1. Institute for Advanced Simulation, Institut für Kernphysik, and Jülich Center for Hadron Physics, Forschungszentrum Jülich, D-52425 Jülich, Germany;2. Department of Physics and Astronomy, Ohio University, Athens, OH 45701, United States;3. Department of Physics and Astronomy, Stony Brook University, Stony Brook, NY 11794-3800, United States;1. Department of Physics and Astronomy, Texas A&M University-Commerce, Commerce, TX 75429-3011, USA;2. College of Science, University of Shanghai for Science and Technology, Shanghai, 200093, China;3. Department of Applied Physics, Xi''an Jiaotong University, Xian 710049, China;4. INPAC, Department of Physics and Astronomy and Shanghai Key Laboratory for Particle Physics and Cosmology, Shanghai Jiao Tong University, Shanghai 200240, China;5. Center of Theoretical Nuclear Physics, National Laboratory of Heavy Ion Accelerator, Lanzhou 730000, China;1. China Institute of Atomic Energy, P.O. Box 275 (10), Beijing 102413, PR China;2. National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, MI 48824, USA |
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| Abstract: | Skyrme effective forces are revisited to improve their behavior with respect to the isospin degree of freedom from the stability line to the most exotic nuclei that coming experimental facilities will produce. To achieve the best possible calculation of nuclear properties up to the neutron drip line, it is proposed to fit the neutron matter equation of state of the UV14+UVII theoretical model up to high densities to avoid any collapses or unphysical features of the resulting equation of state in the Skyrme framework. This last and very severe constraint on these interactions allows a prospective study of both neutron rich nuclei and neutron star matter. |
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