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Dark Matter, Dark Energy and the solution of the strong CP problem
Astrophysics · Submitted 20 Sep 2006
abstract compiled · 2026-09-23 · no language-model review
The authors' main claim DM and DE arise, in fai proportions, from a single scalar field, without tuning any extra parameter.
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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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The abstract, sentence by sentence
The strong CP problem was solved by Peccei & Quinn by introducing axions, a viable candidate for Dark Matter (DM). Here the PQ approach is modified so to yield also Dark Energy (DE). DM and DE arise, in fai proportions, from a single scalar field, without tuning any extra parameter. In the present epoch, they are weakly coupled. Fluctuations have a fair evolution. The model is also fitted to the WMAP1 release, using a Markov Chain Monte Carlo technique, and performs as well as $\Lambda$CDM, coupled or uncoupled DE. Best--fit cosmological parameters for different models are mostly within 2--$\sigma$ level. Here, the main peculiarity of the model is to favor high values of the Hubble parameter.
background contribution method result interpretation main claim
| # | sentence | role | the authors' own work | states the main conclusion | strength |
|---|---|---|---|---|---|
| s0 | The strong CP problem was solved by Peccei & Quinn by introducing axions, a viable candidate for Dark Matter (DM). | background 1.00 | 0.04 | 0.10 | asserted 0.99 |
| s1 | Here the PQ approach is modified so to yield also Dark Energy (DE). | contribution 0.99 | 0.85 | 0.22 | asserted 1.00 |
| s2 | DM and DE arise, in fai proportions, from a single scalar field, without tuning any extra parameter. | result 0.57 | 0.82 | 0.62 | asserted 1.00 |
| s3 | In the present epoch, they are weakly coupled. | result 0.94 | 0.55 | 0.05 | asserted 1.00 |
| s4 | Fluctuations have a fair evolution. | result 0.96 | 0.60 | 0.05 | asserted 0.93 |
| s5 | The model is also fitted to the WMAP1 release, using a Markov Chain Monte Carlo technique, and performs as well as $\Lambda$CDM, coupled or uncoupled DE. | result 0.49 | 0.93 | 0.19 | asserted 1.00 |
| s6 | Best--fit cosmological parameters for different models are mostly within 2--$\sigma$ level. | result 1.00 | 0.87 | 0.08 | asserted 0.96 |
| s7 | Here, the main peculiarity of the model is to favor high values of the Hubble parameter. | result 0.83 | 0.86 | 0.39 | asserted 0.99 |
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Original abstract
The strong CP problem was solved by Peccei & Quinn by introducing axions, a viable candidate for Dark Matter (DM). Here the PQ approach is modified so to yield also Dark Energy (DE). DM and DE arise, in fai proportions, from a single scalar field, without tuning any extra parameter. In the present epoch, they are weakly coupled. Fluctuations have a fair evolution. The model is also fitted to the WMAP1 release, using a Markov Chain Monte Carlo technique, and performs as well as $\Lambda$CDM, coupled or uncoupled DE. Best--fit cosmological parameters for different models are mostly within 2--$\sigma$ level. Here, the main peculiarity of the model is to favor high values of the Hubble parameter.
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Papers whose main result relates to this one's
States the same result 1 paper
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DM and DE arise from a single scalar field and, in the present ecpoch, are weakly coupled.
Dark Matter and Dark Energy from a single scalar field · 0.95
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