Supersymmetric Baryonic Branes

TL;DR

This paper derives energy bounds for baryonic branes in AdS backgrounds, showing supersymmetric configurations that realize baryon vertices and effects in string and M-theory, extending previous results.

Contribution

It introduces new energy bounds for baryonic D5- and M5-branes, revealing supersymmetric configurations that realize baryon vertices and Hanany-Witten effects in AdS and M-theory backgrounds.

Findings

Supersymmetric D5-brane configurations in AdS_5×S^5

Baryonic M5-brane configurations in AdS_7×S^4

Realization of baryon vertices and Hanany-Witten effects in M-theory

Abstract

We derive an energy bound for a `baryonic' D5-brane probe in the $adS_5\times S^5$ background near the horizon of $N$ D3-branes. Configurations saturating the bound are shown to be 1/4 supersymmetric $S^5$-wrapped D5-branes, with a total Born-Infeld charge $N$. Previous results are recovered as a special case. We derive a similar energy bound for a `baryonic' M5-brane probe in the background of $N$ M5-branes. Configurations saturating the bound are again 1/4 supersymmetric and, in the $adS_7\times S^4$ near-horizon limit, provide a worldvolume realization of the `baryon string' vertex of the (2,0)-supersymmetric six-dimensional conformal field theory on coincident M5-branes. For the full M5-background we find a worldvolume realization of the Hanany-Witten effect in M-theory.