
TL;DR
This paper revisits the brane-scan of super p-branes, addressing past inconsistencies in near-horizon symmetry enhancement predictions, and suggests recent findings support the brane-scan's validity with alpha' corrections, opening new avenues for AdS/CFT dualities.
Contribution
The paper revives the near-horizon brane-scan framework, incorporating recent evidence that supports its predictions when alpha' corrections are considered, potentially resolving longstanding paradoxes.
Findings
Recent evidence shows the heterotic string exhibits near-horizon symmetry enhancement with alpha' corrections.
The brane-scan predictions align with observed near-horizon symmetries when corrections are included.
New potential AdS/CFT dualities are proposed based on these revised symmetry considerations.
Abstract
In 1987 two versions of the brane-scan of D-dimensional super p-branes were put forward. The first pinpointed those (p,D) slots consistent with kappa-symmetric Green-Schwarz type actions; the second generalized the "membrane at the end of the universe" idea to all those superconformal groups describing p-branes on the boundary of AdS_{p+2} x S^{D-p-2}. Although the second version predicted D3 and M5 branes in addition to those of the first, it came unstuck because the 1/2 BPS solitonic branes failed to exhibit the required symmetry enhancement in the near-horizon limit, except in the non-dilatonic cases (p=2,D=11), (p=3,D=10) and (p=5,D=11). Just recently, however, it has been argued that the fundamental D=10 heterotic string does indeed display a near-horizon enhancement to OSp(8|2) as predicted by the brane-scan, provided alpha' corrections are taken into account. If this logic could…
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