TL;DR
This paper investigates the unique features of intersecting M5-branes, proposing that a non-zero two-form on the brane's world-volume explains previously puzzling supergravity solution behaviors.
Contribution
It introduces the idea that a non-zero two-form on the M5-brane accounts for the peculiarities of intersecting brane configurations.
Findings
Supergravity solutions show unusual features for intersecting M5-branes.
A non-zero two-form on the M5-brane world-volume explains these features.
This insight resolves longstanding puzzles about the system.
Abstract
In this note we study the puzzle posed by two M5-branes intersecting on a string (or equivalently, a single M5-brane wrapping a holomorphic four-cycle in C^4). It has been known for a while that this system is different from all other configurations built using self-intersecting M-branes; in particular the corresponding supergravity solution exhibits various curious features which have remained unexplained. We propose that the resolution to these puzzles lies in the existence of a non-zero two-form on the M5-brane world-volume.
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