Screening in perturbative approaches to LSS
Abstract
A specific value for the cosmological constant Λ can account for late-time cosmic acceleration. However, motivated by the so-called cosmological constant problem(s), several alternative mechanisms have been explored. To date, a host of well-studied dynamical dark energy and modified gravity models exists. Going beyond ΛCDM often comes with additional degrees of freedom (dofs). For these to pass existing observational tests, an efficient screening mechanism must be in place. Furthermore, the linear and quasi-linear regimes of structure formation are ideal probes of such dofs and can capture the onset of screening. We propose here a semi-phenomenological “filter” to account for screening dynamics on LSS observables, with special emphasis on Vainshtein-type screening.
- Authors:
- Publication Date:
- Research Org.:
- SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1686171
- Alternate Identifier(s):
- OSTI ID: 1414837
- Grant/Contract Number:
- DEAC02-76SF00515; AC02-76SF00515
- Resource Type:
- Published Article
- Journal Name:
- Physics Letters B
- Additional Journal Information:
- Journal Name: Physics Letters B Journal Volume: 773 Journal Issue: C; Journal ID: ISSN 0370-2693
- Publisher:
- Elsevier
- Country of Publication:
- Netherlands
- Language:
- English
- Subject:
- 79 ASTRONOMY AND ASTROPHYSICS
Citation Formats
Fasiello, Matteo, and Vlah, Zvonimir. Screening in perturbative approaches to LSS. Netherlands: N. p., 2017.
Web. doi:10.1016/j.physletb.2017.08.032.
Fasiello, Matteo, & Vlah, Zvonimir. Screening in perturbative approaches to LSS. Netherlands. https://doi.org/10.1016/j.physletb.2017.08.032
Fasiello, Matteo, and Vlah, Zvonimir. Sun .
"Screening in perturbative approaches to LSS". Netherlands. https://doi.org/10.1016/j.physletb.2017.08.032.
@article{osti_1686171,
title = {Screening in perturbative approaches to LSS},
author = {Fasiello, Matteo and Vlah, Zvonimir},
abstractNote = {A specific value for the cosmological constant Λ can account for late-time cosmic acceleration. However, motivated by the so-called cosmological constant problem(s), several alternative mechanisms have been explored. To date, a host of well-studied dynamical dark energy and modified gravity models exists. Going beyond ΛCDM often comes with additional degrees of freedom (dofs). For these to pass existing observational tests, an efficient screening mechanism must be in place. Furthermore, the linear and quasi-linear regimes of structure formation are ideal probes of such dofs and can capture the onset of screening. We propose here a semi-phenomenological “filter” to account for screening dynamics on LSS observables, with special emphasis on Vainshtein-type screening.},
doi = {10.1016/j.physletb.2017.08.032},
journal = {Physics Letters B},
number = C,
volume = 773,
place = {Netherlands},
year = {Sun Oct 01 00:00:00 EDT 2017},
month = {Sun Oct 01 00:00:00 EDT 2017}
}
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https://doi.org/10.1016/j.physletb.2017.08.032
https://doi.org/10.1016/j.physletb.2017.08.032
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Cited by: 13 works
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Works referencing / citing this record:
Screenings in modified gravity: a perturbative approach
journal, January 2019
- Aviles, Alejandro; Cervantes-Cota, Jorge L.; Mota, David F.
- Astronomy & Astrophysics, Vol. 622
Nonlinear effective theory of dark energy
journal, April 2018
- Cusin, Giulia; Lewandowski, Matthew; Vernizzi, Filippo
- Journal of Cosmology and Astroparticle Physics, Vol. 2018, Issue 04
Nonlinear evolution of initially biased tracers in modified gravity
journal, November 2018
- Aviles, Alejandro; Rodriguez-Meza, Mario Alberto; De-Santiago, Josue
- Journal of Cosmology and Astroparticle Physics, Vol. 2018, Issue 11
Testing (modified) gravity with 3D and tomographic cosmic shear
journal, August 2018
- Spurio Mancini, A.; Reischke, R.; Pettorino, V.
- Monthly Notices of the Royal Astronomical Society, Vol. 480, Issue 3
Lagrangian perturbation theory for modified gravity
journal, December 2017
- Aviles, Alejandro; Cervantes-Cota, Jorge L.
- Physical Review D, Vol. 96, Issue 12
Convolution Lagrangian perturbation theory for biased tracers beyond general relativity
journal, March 2019
- Valogiannis, Georgios; Bean, Rachel
- Physical Review D, Vol. 99, Issue 6