Evolution of nuclear shells due to the tensor force |
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Authors: | Otsuka Takaharu Suzuki Toshio Fujimoto Rintaro Grawe Hubert Akaishi Yoshinori |
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Institution: | Department of Physics, University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113-0033, Japan. otsuka@phys.s.u-tokyo.ac.jp |
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Abstract: | The monopole effect of the tensor force is presented, exhibiting how spherical single-particle energies are shifted as protons or neutrons occupy certain orbits. An analytic relation for such shifts is shown, and their general features are explained intuitively. Single-particle levels are shown to change in a systematic and robust way, by using the pi + rho meson exchange tensor potential, consistently with the chiral perturbation idea. Several examples are compared with experiments. |
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