论文标题
费米子和重子作为Brane交界处的开放弦状态
Fermions and baryons as open-string states from brane junctions
论文作者
论文摘要
最近的进步朝着理解世界体积费米子的动态，这些动态是从探针限制$（n_f/n_c \ rightarrow 0）$的brane交叉点的开弦模式中产生的。在这项工作中，我们考虑了IIA/B型超级重力理论中所有可能的BPS Brane连接。我们通过得出它们的运动方程来详细研究这些状态的动力学。我们显示了由于保留的超对称性而预期的骨气和费米斯波动的预期退化。我们还提供了一些支持证据，并完善了这些国家可以在田间理论参数空间的某个制度中有效地描述Baryon操作员的观念。我们的证据是这些典型状态中质量限制的质量的预期尺度的证明； $ m^2 \ sim n^2_c $。最后，我们通过分析解释了在现场理论中包含更高维操作员之后，在先前的工作中观察到的避免水平的交叉。
There has been recent progress towards understanding the dynamics of world-volume fermions that arise as open-string modes from brane intersections in the probe limit $(N_f/N_c \rightarrow 0)$. In this work we consider all possible BPS brane junctions in Type IIA/B supergravity theories. We study in detail the dynamics of these states by deriving their equations of motion. We show the expected degeneracy of the bosonic and fermionic fluctuations as is expected due to the preserved supersymmetry. We also give some supporting evidence and refine the notion that these states can effectively describe baryon operators in a certain regime of the field theory's parameter space. Our piece of evidence is the demonstration of the expected scaling of the mass in the large-$N_c$ limit of the theory for these fermionic states; $M^2 \sim N^2_c$. Finally, we explain analytically the avoided level crossing that was observed in a previous work after the inclusion of higher dimension operators in the field theory.
