近日，意大利都灵理工大学的L. Ravera及其研究团队取得一项新进展。经过不懈努力，他们对Rarita-Schwinger和引力微子场情况下的超对称修饰场进行了研究。相关研究成果已于2024年7月4日在国际知名学术期刊《高能物理杂志》上发表。

本文提出，在刚性超对称场论和超引力理论框架下，用于提取Rarita-Schwinger旋量矢量和引力微子（离壳）自由度的标准固定条件，实质上是采用对称约化方法修饰场论的一个具体实例。

鉴于修饰场方法本身蕴含的自然关系解释，这些“规范固定条件”——更贴切地称为“修饰函数约束”——的解决，实际上促使Rarita-Schwinger旋量矢量和引力子场以（非局域）关系变量的形式呈现。据研究人员所知，这是修饰场方法在超对称理论领域中的首次应用。

附：英文原文

Title: Dressing fields for supersymmetry: the cases of the Rarita-Schwinger and gravitino fields

Author: Franois, J., Ravera, L.

Issue&Volume: 2024-07-04

Abstract: In this paper we argue that the gauge-fixing conditions typically used to extract the (off-shell) degrees of freedom of the Rarita-Schwinger spinor-vector and gravitino, respectively in rigid supersymmetric field theory and supergravity, are actually instances of the dressing field method of symmetry reduction. Since the latter has a natural relation interpretation, solving the “gauge-fixing condition” — or, better, “dressing functional constraints” — actually realises the Rarita-Schwinger spinor-vector and the gravitino fields as (non-local) relational variables. To the best of our knowledge, this is the first application of the dressing field method to supersymmetric theories.

DOI: 10.1007/JHEP07(2024)041

Source: https://link.springer.com/article/10.1007/JHEP07(2024)041