Could a CPL parametrization be included into Brans-Dicke model?

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SUMMARY

The discussion centers on the integration of the Chevallier-Polarski-Linder (CPL) parametrization into the Brans-Dicke model for cosmological forecasts. The user has utilized Matter power spectra generated by the CAMB and CLASS codes, and is exploring the potential of Hi-CLASS to produce specific Matter power spectra tailored for the Brans-Dicke framework. The objective is to determine if the CPL parametrization can coexist within the Brans-Dicke model to enhance the assessment of classical cosmological parameters alongside w_0 and w_a parameters.

PREREQUISITES
  • Understanding of CPL (Chevallier-Polarski-Linder) parametrization
  • Familiarity with Matter power spectra generation using CAMB and CLASS codes
  • Knowledge of the Brans-Dicke model in cosmology
  • Experience with Hi-CLASS for generating cosmological data
NEXT STEPS
  • Research the integration of CPL parametrization within the Brans-Dicke model
  • Explore advanced features of Hi-CLASS for generating tailored Matter power spectra
  • Study the implications of modified gravity theories on cosmological parameters
  • Investigate methods for assessing constraints on w_0 and w_a parameters in cosmological models
USEFUL FOR

Astronomers, cosmologists, and researchers focused on modified gravity theories and cosmological parameter estimation will benefit from this discussion.

fab13
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TL;DR
After doing some forecasts with w_0,wa CDM, I would like to know if i can keep the same structure of the code but with generating Matter power spectra of Brans-Dicke
I have studied up to now about forecasts to constrain cosmological parameters in the context of CPL( Chevallier-Polarski-Linder ) parametrization with w_0, ,w_a parameters in equation of state for cosmic fluid.

For this, I have used Matter power spectra ("fake data") generated by CAMB and CLASS codes.

Now, I have to study the Brans-Dicke model : I think about generating Matter power spectra with CLASS (or rather Hi-CLASS) which has an option to generate specific Matter power spectra dedicated to Brans-Dicke framework.

I would like to know if I could keep the CPL parametrization in Brans-Dicke model, i.e generating Brans-Dicke Matter power spectra and include them into the forecast code in order to assess constraints on classical cosmological parameters and also on w_0,w_a parameters.
 
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Hello, could this post be transfered to "

Beyond the Standard Model Forum " forum ? , I think this would be more suitable

 
Could anyone give me some clues or some elements of answer ? The 2 modified models could co-exist ?

Thanks
 

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