1/4 PBGS and Superparticle Actions

TL;DR

This paper constructs superparticle actions with partial supersymmetry breaking, exploring different cases and presenting new formulations of these actions in various supersymmetric contexts.

Contribution

It introduces worldline superfield superparticle actions that preserve a quarter of the supersymmetry, including new formulations for N=4/N=1 and N=8/N=2 partial breaking cases.

Findings

Constructed superparticle actions with 1/4 supersymmetry preservation.

Presented Green-Schwarz type target superspace actions with kappa symmetry.

Identified two distinct possibilities for N=8/N=2 partial breaking.

Abstract

We construct the worldline superfield massive superparticle actions which preserve 1/4 portion of the underlying higher-dimensional supersymmetry. We consider the cases of N=4/N=1 and N=8/N=2 partial breaking. In the first case we present the corresponding Green-Schwarz type target superspace action with one kappa supersymmetry. In the second case we find out two possibilities, one of which is a direct generalization of the N=4/N=1 case, while another is essentially different.