论文标题
NN接触相互作用和3N力的统一歧义
Unitary ambiguity of NN contact interactions and the 3N force
论文作者
论文摘要
我们分别在手性膨胀的第四和第五阶分别确定了两核子接触相互作用之间的冗余。特别是我们表明，张量型和旋转轨道三核接触相互作用有效地解释了两种核子相互作用的一部分，这取决于总质量中心动量，并且不受相对性的影响。这可能会使手性有效的场理论足够灵活性，可以成功解决$ a = 3 $散射的观测值。
We identify a redundancy between two- and three-nucleon contact interactions at the fourth and fifth order of the chiral expansion respectively. In particular we show that tensor-type and spin-orbit three-nucleon contact interactions effectively account for that part of the two-nucleon interaction which depends on the total center-of-mass momentum and is unconstrained by relativity. This might give the chiral effective field theory enough flexibility to successfully address $A=3$ scattering observables already at N3LO.
