Departamento de Física de Partículas, Universidad de Santiago de Compostela and Instituto Galego de Física de Altas Enerxias (IGFAE), E-15782 Santiago de Compostela, Spain.
Institute of Physics, Jagiellonian University, Reymonta 4, Kraków, Poland.
Phys Rev Lett. 2013 Dec 6;111(23):232501. doi: 10.1103/PhysRevLett.111.232501. Epub 2013 Dec 2.
We use the classical Bogomol'nyi-Prasad-Sommerfield (BPS) soliton solutions of the BPS Skyrme model together with corrections from the collective coordinate quantization of spin and isospin, the electrostatic Coulomb energies, and a small explicit breaking of the isospin symmetry-accounting for the proton-neutron mass difference-to calculate nuclear binding energies. We find that the resulting binding energies are already in excellent agreement with their physical values for heavier nuclei, demonstrating thereby that the BPS Skyrme model is a distinguished starting point for a detailed quantitative investigation of nuclear and low-energy strong interaction physics.
我们使用 BPS Skyrme 模型的经典 Bogomol'nyi-Prasad-Sommerfield（BPS）孤子解，以及自旋和同位旋的集体坐标量子化修正、静电库仑能和同位旋对称性的微小显式破坏（考虑质子-中子质量差异），来计算核结合能。我们发现，对于较重的原子核，得到的结合能已经与它们的物理值非常吻合，这表明 BPS Skyrme 模型是一个优秀的起点，可以用于对核和低能强相互作用物理进行详细的定量研究。
