A Note on Enhanced Gauge Symmetries in M- and String Theory

Ashoke Sen

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A Note on Enhanced Gauge Symmetries in M- and String Theory

Ashoke Sen

High Energy Physics - Theory · Submitted 13 Jul 1997

abstract compiled · 2026-09-23 · no language-model review

The authors' main claim In this paper we exhibit the relationship between these two mechanisms by displaying a configuration in M-theory, which, in one limit, can be regarded as membranes wrapped around two cycles with $A_{N-1}$ (D_N) type intersection matrix, and in another limit, can be regarded as open strings stretched between N Dirichlet 6-branes (in the presence of an orientifold plane).

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Two different mechanisms exist in non-perturbative String / M- theory for enhanced SU(N) (SO(2N)) gauge symmetries. It can appear in type IIA string theory or M-theory near an $A_{N-1}$ (D_N) type singularity where membrnes wrapped around two cycles become massless, or it can appear due to coincident D-branes (and orientifold planes) where open strings stretched between D-branes become massless. In this paper we exhibit the relationship between these two mechanisms by displaying a configuration in M-theory, which, in one limit, can be regarded as membranes wrapped around two cycles with $A_{N-1}$ (D_N) type intersection matrix, and in another limit, can be regarded as open strings stretched between N Dirichlet 6-branes (in the presence of an orientifold plane).

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What the classifier reports for each sentence. The number is the probability it gave the label.
#	sentence	role	the authors' own work	states the main conclusion	strength
s0	Two different mechanisms exist in non-perturbative String / M- theory for enhanced SU(N) (SO(2N)) gauge symmetries.	background 1.00	0.05	0.05	asserted 1.00
s1	It can appear in type IIA string theory or M-theory near an $A_{N-1}$ (D_N) type singularity where membrnes wrapped around two cycles become massless, or it can appear due to coincident D-branes (and orientifold planes) where open strings stretched between D-branes become massless.	background 1.00	0.05	0.05	asserted 0.65
s2	In this paper we exhibit the relationship between these two mechanisms by displaying a configuration in M-theory, which, in one limit, can be regarded as membranes wrapped around two cycles with $A_{N-1}$ (D_N) type intersection matrix, and in another limit, can be regarded as open strings stretched between N Dirichlet 6-branes (in the presence of an orientifold plane).	contribution 0.99	0.94	0.88	asserted 1.00

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Original abstract

Two different mechanisms exist in non-perturbative String / M- theory for enhanced SU(N) (SO(2N)) gauge symmetries. It can appear in type IIA string theory or M-theory near an $A_{N-1}$ (D_N) type singularity where membrnes wrapped around two cycles become massless, or it can appear due to coincident D-branes (and orientifold planes) where open strings stretched between D-branes become massless. In this paper we exhibit the relationship between these two mechanisms by displaying a configuration in M-theory, which, in one limit, can be regarded as membranes wrapped around two cycles with $A_{N-1}$ (D_N) type intersection matrix, and in another limit, can be regarded as open strings stretched between N Dirichlet 6-branes (in the presence of an orientifold plane).

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Cited by 12 Pith papers

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29 arXiv papers cite this in 53 sentences

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Cites it as background 9 papers

This singularity structure goes back to [ref] with further discussion and development in [ref] [ref] [ref] [ref] [ref] [ref] ; the type IIA perspective is considered in [ref] and also briefly in [ref] .

Equivariant Cohomotopy implies orientifold tadpole cancellation · Heterotic M-theory on ADE-orbifolds · 0.84
The essential degrees of freedom for the realization of such gauge theories localize near specific type of singularities in the extra spatial dimensions [ref] .

Aspects of 4d $\mathcal{N}=1$ $ADE$ gauge theories from M-theory: decomposition, automorphisms, and generalised symmetries · Introduction and summary · 0.90
Recall that an S-duality transformation, also known as a “9-11 flip”, maps type IIA string theory on the $D_n$-type ALF space to the brane construction involving $n$ D6-branes on top of an O6$^-$ plane [ref] .

Little strings on $D_n$ orbifolds · Effective gauge theories · 0.95

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