论文标题
三核系统：三核力力的不可还原和可还原的贡献
Three-nucleon system: Irreducible and reducible contributions of the three-nucleon force
论文作者
论文摘要
三个核子结合方程和散射方程在动量空间中求解，用于耦合通道汉密尔顿。哈密顿式的纯粹是希尔伯特空间的纯核酸扇区，其中一个核子对$δ$ isobar感到兴奋。该相互作用由不可约合的两巴里子和不可还原的三 - 巴里元电势组成。该计算仅保留了不可还原的三 - 巴里元电位中的纯核一个。耦合通道两巴里元电势会对三核力量产生额外的降低贡献。使用筛选和重新规定的方法包括两个质子之间的库仑相互作用。研究了三核力对边界态能量的影响以及弹性核子 - 脱核散射和分裂的观察力。
The three-nucleon bound and scattering equations are solved in momentum space for a coupled-channel Hamiltonian. The Hamiltonian couples the purely nucleonic sector of Hilbert space with a sector in which one nucleon is excited to a $Δ$ isobar. The interaction consists of irreducible two-baryon and irreducible three-baryon potentials. The calculation keeps only the purely nucleonic one among the irreducible three-baryon potentials. The coupled-channel two-baryon potential yields additional reducible contributions to the three-nucleon force. The Coulomb interaction between the two protons is included using the method of screening and renormalization. Three-nucleon force effects on the bound-state energies and on observables of elastic nucleon-deuteron scattering and breakup are studied.
