Papers › An Accurate Fitting Function For Scale-dependent Growth Rate in Hu-Sawicki f(R) Gravity
An Accurate Fitting Function For Scale-dependent Growth Rate in Hu-Sawicki f(R) Gravity
Nareg Mirzatuny, Elena Pierpaoli
The archive published only this paper's code-link row. Authors, date and abstract are from arXiv's metadata (CC0), read from the Kaggle arXiv metadata snapshot of 2026-09-12 where its title matched the archive's; the title is the archive's.
We present a simple fitting formula for the scale-dependent growth rate of Hu-Sawicki model in f(R) modified gravity. We compare the accuracy of the fitting function against numerical results and report achieving a sub-percent maximum error for all different studied cases. The validity of the fitting function is tested against a wide range of scales, 10⁻⁴ ≤k ≤5 [Mpc⁻¹] , for various redshift values in the range of z ∈[0.0, 3.0] and different |f_R⁰| values. This formula is useful in producing predictions for cosmological probes that are sensitive to growth rate such as redshift space distortions, galaxy-galaxy correlation function, peculiar velocity statistics and pairwise velocities of galaxy clusters.
Code
Repository list and official/mentioned flags are the archive's, frozen 2025-07-28. Reachability, where shown, is from one Syntology probe window (2026-09-16 to 2026-09-18); repositories not probed show nothing. GitHub stars are not tracked.
Code Syntology ran Syntology
Not run by Syntology. Nothing on this page verifies that the listed code works.
Results from the paper archive 2025-07-28
No leaderboard rows for this paper in the archive.
Report a problem or propose a change · a person checks every report against the paper or source before anything changes; decisions are listed on /corrections