标题： 贝塔变形在twistor弦理论中 显示英文标题

标题： Beta-deformation in Twistor-String Theory

摘要： 在这项工作中，我们研究了边际beta变形在扭量空间$\mathbb{CP}^{3|4}$的拓扑B模型背景下如何在${N}=4$超杨-米尔斯理论中表现出来。我们首先将beta变形识别为生活在特定不可约表示中的状态。然后，我们计算了拓扑模型的BRST上同调中的鬼数为二的元素。这些状态应用了一个规范固定过程，使我们能够识别出那些生活在表征beta变形的不可约表示中的元素。基于这一识别，我们继续写出变形后的拓扑作用量以及相应的变形BRST算子。 显示英文摘要

摘要： In this work, we investigate how the marginal beta deformation of the ${N}=4$ super-Yang-Mills theory manifests within the context of the topological B-model in the twistor space $\mathbb{CP}^{3|4}$. We begin by identifying the beta deformation as states living in a specific irreducible representation of the superconformal algebra. Then, we compute the ghost number two elements of the BRST cohomology of the topological model. A gauge-fixing procedure is applied to these states, allowing us to identify the elements living in the irreducible representation that characterizes the beta deformation. Based on this identification, we proceed to write the deformed topological action, and the corresponding deformed BRST operator.