论文标题
非本地洛伦兹侵略的方面和应用
Aspects and applications of nonlocal Lorentz-violation
论文作者
论文摘要
我们认为简单的标量理论具有非本地和洛伦兹的二次术语。与我们以前考虑过的类似的Lorentz-Invariant非本地理论不同，此处研究的理论既没有幽灵又统一，正如Minkowski Space中所述的那样。我们探讨了在黑暗部门中非局部性的规模可能很低的可能性，在黑暗部门中，对违反洛伦兹不变性的严格约束可以通过与标准模型的弱耦合来容纳。我们指出，远距离力量可能源于这样的部门，并且可以与更传统的超越标准模型可能性区分开。我们提出了一个模型，其中非本地，洛伦兹侵略的黑暗扇区通过重型向量式费米子的扇区与标准模型进行通信，这是一个混凝土框架，可以研究现象学约束和信号。
We consider simple scalar theories with quadratic terms that are nonlocal and Lorentz violating. Unlike similar Lorentz-invariant nonlocal theories that we have considered previously, the theories studied here are both ghost-free and unitary as formulated in Minkowski space. We explore the possibility that the scale of nonlocality could be low in a dark sector, where the stringent constraints on the violation of Lorentz invariance may be accommodated via the weak coupling to the standard model. We point out that long-range forces may originate from such a sector and be distinguishable from more conventional beyond-the-standard model possibilities. We present a model in which a nonlocal, Lorentz-violating dark sector communicates with the standard model via a sector of heavy vector-like fermions, a concrete framework in which phenomenological constraints and signals can be investigated.
