论文标题
开放式SuperString第一质量水平有效Lagrangian：电磁背景中的大量自旋2
Open Superstring First Mass Level Effective Lagrangian: Massive Spin-2 in an Electromagnetic Background
论文作者
论文摘要
最小的耦合会导致诸如因果关系丧失的问题，如果一个人想描述在恒定电磁背景中传播的带电粒子大于一个大于一个的旋转颗粒。弦理论中的Regge轨迹包含此类状态，因此他们的研究可能使我们能够调查可能的途径来纠正病理。我们在这里提出了两种明确的形式，该形式通过现场重新定义与拉格朗日人相关，这些形式在四个维度上的第一个大型开放式超弦上描述了骨状状态。当电磁场设置为零时，第一个减小为Spin-2模式的Fierz-Pauli Lagrangian。第二种是一种更紧凑的形式，它简化了运动和约束方程式的Fierz-Pauli系统的推导。
Minimal coupling leads to problems such as loss of causality if one wants to describe charged particles of spin greater than one propagating in a constant electromagnetic background. Regge trajectories in string theory contain such states, so their study may allow us to investigate possible avenues to remedy the pathologies. We present here two explicit forms, related by field redefinitions, of the Lagrangian describing the bosonic states in the first massive level of open superstrings in four dimensions. The first one reduces, when the electromagnetic field is set to zero, to the Fierz-Pauli Lagrangian for the spin-2 mode. The second one is a more compact form which simplifies the derivation of a Fierz-Pauli system of equations of motion and constraints.
