A Naturally Small Cosmological Constant on the Brane?

C.P. Burgess; F. Quevedo; R.C. Myers

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A Naturally Small Cosmological Constant on the Brane?

C.P. Burgess, R.C. Myers, F. Quevedo

High Energy Physics - Theory · Submitted 21 Nov 1999

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

The authors' main claim Furthermore, although the resulting cosmological constant in the scenarios we outline is naturally suppressed by weak coupling constants of gravitational strength, it need not be exactly zero, raising the possibility it could be in the range favoured by recent cosmological observations.

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The compiled record

The paper's own sentences, arranged. Each label is drawn from a closed vocabulary; the number beside it is the probability the classifier gave that label. Numbers in the tables are the authors', checked by code. No sentence in this record was written by a model.

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Compiled by classifier-1.13-20260917 via OpenRouter, question bank abstract-p1-20260923, 2026-09-23: 1 request, 4,408 input tokens, $0.0002 reported.

What the abstract itself states, as probabilities: claims first 0.04 · states limitation 0.73 · human participants 0.01 · controlled comparison 0.02 · randomized assignment 0.01 · states quantitative result 0.06 · compares with prior results 0.25 · mentions code or data availability 0.01.

The abstract, sentence by sentence

arXiv listing abstract v3. Results and the main claim are underlined; show every role.

There appears to be no natural explanation for the cosmological constant's small size within the framework of local relativistic field theories. We argue that the recently-discussed framework for which the observable universe is identified with a p-brane embedded within a higher-dimensional `bulk' spacetime, has special properties that may help circumvent the obstacles to this understanding. This possibility arises partly due to several unique features of the brane proposal. These are: (1) the potential such models introduce for partially breaking supersymmetry, (2) the possibility of having low-energy degrees of freedom which are not observable to us because they are physically located on a different brane, (3) the fundamental scale may be much smaller than the Planck scale. Furthermore, although the resulting cosmological constant in the scenarios we outline is naturally suppressed by weak coupling constants of gravitational strength, it need not be exactly zero, raising the possibility it could be in the range favoured by recent cosmological observations.

background contribution method result interpretation main claim

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	There appears to be no natural explanation for the cosmological constant's small size within the framework of local relativistic field theories.	background 0.69	0.07	0.04	hedged possibility 0.66
s1	We argue that the recently-discussed framework for which the observable universe is identified with a p-brane embedded within a higher-dimensional `bulk' spacetime, has special properties that may help circumvent the obstacles to this understanding.	contribution 0.96	0.30	0.22	hedged possibility 0.98
s2	This possibility arises partly due to several unique features of the brane proposal.	contribution 0.50	0.15	0.04	hedged possibility 0.61
s3	These are: (1) the potential such models introduce for partially breaking supersymmetry, (2) the possibility of having low-energy degrees of freedom which are not observable to us because they are physically located on a different brane, (3) the fundamental scale may be much smaller than the Planck scale.	contribution 0.51	0.11	0.06	hedged possibility 0.59
s4	Furthermore, although the resulting cosmological constant in the scenarios we outline is naturally suppressed by weak coupling constants of gravitational strength, it need not be exactly zero, raising the possibility it could be in the range favoured by recent cosmological observations.	interpretation 0.63	0.71	0.72	hedged possibility 0.82

What kind of paper the classifier reports this is: position or commentary 0.87 · evidence from argument 1.00.

What was examined, and what was not

sources read

arXiv listing abstract v3

not examined

full text
figures and tables
references and citing sentences
relations to other papers

levels run

P abstract

not run

S sections
T body sentences
C citations
R cross-paper relations

Every quoted sentence on this record is the authors'. Every label is from Pith's closed vocabulary, with the probability shown beside it. Every number in the measurements table is the authors', checked by code. Record as JSON

The paper

Original abstract

There appears to be no natural explanation for the cosmological constant's small size within the framework of local relativistic field theories. We argue that the recently-discussed framework for which the observable universe is identified with a p-brane embedded within a higher-dimensional `bulk' spacetime, has special properties that may help circumvent the obstacles to this understanding. This possibility arises partly due to several unique features of the brane proposal. These are: (1) the potential such models introduce for partially breaking supersymmetry, (2) the possibility of having low-energy degrees of freedom which are not observable to us because they are physically located on a different brane, (3) the fundamental scale may be much smaller than the Planck scale. Furthermore, although the resulting cosmological constant in the scenarios we outline is naturally suppressed by weak coupling constants of gravitational strength, it need not be exactly zero, raising the possibility it could be in the range favoured by recent cosmological observations.

Human review

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References

Forward citations

Cited by 2 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

Towards a Naturally Small Cosmological Constant from Branes in 6D Supergravity
hep-th 2003-04 conditional novelty 6.0 of 10

In 6D Salam-Sezgin supergravity, brane tensions cancel against the curvature of the two transverse dimensions, leaving a 4D vacuum energy that reduces to a dilaton surface term and vanishes when the dilaton is smooth.
The Cosmological Constant
astro-ph 2000-04 accept novelty 2.0 of 10

Independent supernova, microwave-background, and cluster-mass measurements converge on a flat universe with about 30% matter and 70% vacuum energy, leaving the origin of that vacuum energy unexplained.

How the literature uses it

7 arXiv papers cite this in 8 sentences

Each citing sentence is taken from the citing paper's LaTeX source and typed by Pith's classifier. A label appears at probability 0.8 or more (0.95 for support), a contest at 0.7 or more; the quoted words are the citing authors'. How each label was checked · JSON

Papers citing it · 2 sentences without a confident label

Cites it as background 6 papers

In a large class of these models a Friedman-Robertson-Walker universe arises by the evolution of a three-dimensional brane in an AdS or in an AdS black-hole spacetime [ref] .

Universe Acceleration in Brane World Models · Introduction · 0.93
This observation has spawned a variety of studies of brane-induced partial supersymmetry breaking within both string and brane-world models [ref] .

Accidental SUSY: Enhanced Bulk Supersymmetry from Brane Back-reaction · Introduction · 0.95
There have been many attempts to solve the cosmological constant problem or the cosmological hierarchy like [ref] and within the brane-worlds scenarios, [ref] .

The Cosmological Constant Problem and the Extra Dimensions of $\mathcal{N}=2$ $\mathcal{D}=5$ Supergravity · Introduction · 0.99

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