论文标题
带有风味SU（3）对称性破裂的Baryon八位字的重力形式。
Gravitational form factors of the baryon octet with flavor SU(3) symmetry breaking
论文作者
论文摘要
我们研究了SU（3）手性夸克 - 索尔顿模型框架内Baryon八位位的重力形式因子，考虑到风味SU（3）对称性破坏的影响以及相应的能量弹药张量分布。我们研究了味道SU（3）对称性的效果，这些对称性破坏了Baryon Octet的质量，角动量，压力和剪切力分布。我们首先发现，较重的重子比较轻的重肉更紧凑。对于Baryon Octet的自旋分布，它们已适当地归一化为旋转，即使损坏了味道SU（3）对称性，也将其分解为风味 - 单词轴向电荷和轨道角动量。虽然风味su（3）对称性的影响有所不同，但造成了八位位室的角动量分布，但发现它们很小。旋转和轨道角动量几乎同样有助于八位位室的角动量分布。我们还估计了风味SU（3）对称性的影响，使压力和剪切力分布。有趣的是，即使我们包括SU（3）风味对称性破坏的效果，剪切力分布仍以$ r $ $ $ $ $ $ $ $ $ $ $ $ $ $为单位。这表明Polyakov＆Schweitzer局部稳定性条件与SU（3）对称性破裂保持完整。最后，我们讨论重力形式因子与风味SU（3）对称性破裂的影响有多大不同。
We investigate the gravitational form factors of the baryon octet within the framework of the SU(3) chiral quark-soliton model, considering the effects of flavor SU(3) symmetry breaking, and the corresponding energy-momentum tensor distributions. We examine the effects of flavor SU(3) symmetry breaking to the mass, angular momentum, pressure, and shear force distributions of the baryon octet. We first find that a heavier baryon is energetically more compact than a lighter one. For the spin distributions of the baryon octet, they are properly normalized to their spins and are decomposed into the flavor-singlet axial charge and the orbital angular momentum even when the flavor SU(3) symmetry is broken. While the effects of the flavor SU(3) symmetry breaking differently contribute to the angular momentum distributions for the octet baryons, they are found to be rather small. The spin and orbital angular momentum almost equally contribute to the angular momentum distributions for the octet baryons. We also estimate the effects of the flavor SU(3) symmetry breaking to the pressure and shear force distributions. Interestingly, even if we include the effects of the SU(3) flavor symmetry breaking, the shear force distributions are kept to be positive over $r$. It indicates that the Polyakov & Schweitzer local stability condition is kept to be intact with the flavor SU(3) symmetry broken. Lastly, we discuss how much the gravitational form factors vary with the effects of flavor SU(3) symmetry breaking considered.
