4D, N=1 Supergravity Genomics

TL;DR

This paper introduces a new graphical approach called supersymmetry genomics to classify 4D, N=1 supergravity representations using adinkras, revealing fundamental structures and a potential method to extend to higher dimensions.

Contribution

It develops a simple procedure to identify off-shell supergravity adinkras and categorizes them using a novel group theoretic framework based on cis/trans adinkras.

Findings

Identifies three fundamental adinkras associated with Coxeter group classes.

Provides a method to derive supergravity representations using adinkras.

Uncovers a possible selection rule for higher-dimensional adinkra construction.

Abstract

The off-shell representation theory of 4D, $\mathcal{N}=1$ supermultiplets can be categorized in terms of distinct irreducible graphical representations called adinkras as part of a larger effort we call supersymmetry `genomics.' Recent evidence has emerged pointing to the existence of three such fundamental adinkras associated with distinct equivalence classes of a Coxeter group. A partial description of these adinkras is given in terms of two types, termed cis-and trans-adinkras (the latter being a degenerate doublet) in analogy to cis/trans isomers in chemistry. Through a new and simple procedure that uses adinkras, we find the irreducible off-shell adinkra representations of 4D, $\mathcal{N}=1$ supergravity, in the old-minimal, non-minimal, and conformal formulations. This procedure uncovers what appears to be a selection rule useful to reverse engineer adinkras to higher dimensions. We categorize the supergravity representations in terms of the number of cis-($n_c$) and trans-($n_t$) adinkras in the representation and synthesize our new results with our previous supersymmetry genomics results into a group theoretic framework.