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Title: EFT of large scale structures in redshift space [On the EFT of large scale structures in redshift space]

Abstract

Here, we further develop the description of redshift-space distortions within the effective field theory of large scale structures. First, we generalize the counterterms to include the effect of baryonic physics and primordial non-Gaussianity. Second, we evaluate the IR resummation of the dark matter power spectrum in redshift space. This requires us to identify a controlled approximation that makes the numerical evaluation straightforward and efficient. Third, we compare the predictions of the theory at one loop with the power spectrum from numerical simulations up to ℓ = 6. We find that the IR resummation allows us to correctly reproduce the baryon acoustic oscillation peak. The k reach—or, equivalently, the precision for a given k—depends on additional counterterms that need to be matched to simulations. Since the nonlinear scale for the velocity is expected to be longer than the one for the overdensity, we consider a minimal and a nonminimal set of counterterms. The quality of our numerical data makes it hard to firmly establish the performance of the theory at high wave numbers. Within this limitation, we find that the theory at redshift z = 0.56 and up to ℓ = 2 matches the data at the percent level approximately upmore » to k~0.13 hMpc –1 or k~0.18 hMpc –1, depending on the number of counterterms used, with a potentially large improvement over former analytical techniques.« less

Authors:
 [1];  [1];  [2];  [3];  [4]
  1. Stanford Univ., Stanford, CA (United States); SLAC National Accelerator Lab., Menlo Park, CA (United States)
  2. SLAC National Accelerator Lab., Menlo Park, CA (United States); Univ. Autonoma de Madrid, Madrid (Spain); Campus of International Excellence UAM+CSIC, Madrid (Spain); Instituto de Astrofisica de Andalucia, (IAA-CSIC), Granada (Spain)
  3. Tsinghua Univ., Beijing (People's Republic of China)
  4. Univ. Autonoma de Madrid, Madrid (Spain)
Publication Date:
Research Org.:
SLAC National Accelerator Lab., Menlo Park, CA (United States); Stanford Univ., CA (United States)
Sponsoring Org.:
USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)
OSTI Identifier:
1436467
Alternate Identifier(s):
OSTI ID: 1429941; OSTI ID: 1491166
Grant/Contract Number:  
AC02-76SF00515; FG02-12ER41854; SEV-2012-0249; AYA2014-60641-C2-1-P; CSD2009-00064; 2012060963; SC0008078
Resource Type:
Accepted Manuscript
Journal Name:
Physical Review D
Additional Journal Information:
Journal Volume: 97; Journal Issue: 6; Journal ID: ISSN 2470-0010
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
79 ASTRONOMY AND ASTROPHYSICS

Citation Formats

Lewandowski, Matthew, Senatore, Leonardo, Prada, Francisco, Zhao, Cheng, and Chuang, Chia -Hsun. EFT of large scale structures in redshift space [On the EFT of large scale structures in redshift space]. United States: N. p., 2018. Web. doi:10.1103/physrevd.97.063526.
Lewandowski, Matthew, Senatore, Leonardo, Prada, Francisco, Zhao, Cheng, & Chuang, Chia -Hsun. EFT of large scale structures in redshift space [On the EFT of large scale structures in redshift space]. United States. doi:10.1103/physrevd.97.063526.
Lewandowski, Matthew, Senatore, Leonardo, Prada, Francisco, Zhao, Cheng, and Chuang, Chia -Hsun. Thu . "EFT of large scale structures in redshift space [On the EFT of large scale structures in redshift space]". United States. doi:10.1103/physrevd.97.063526. https://www.osti.gov/servlets/purl/1436467.
@article{osti_1436467,
title = {EFT of large scale structures in redshift space [On the EFT of large scale structures in redshift space]},
author = {Lewandowski, Matthew and Senatore, Leonardo and Prada, Francisco and Zhao, Cheng and Chuang, Chia -Hsun},
abstractNote = {Here, we further develop the description of redshift-space distortions within the effective field theory of large scale structures. First, we generalize the counterterms to include the effect of baryonic physics and primordial non-Gaussianity. Second, we evaluate the IR resummation of the dark matter power spectrum in redshift space. This requires us to identify a controlled approximation that makes the numerical evaluation straightforward and efficient. Third, we compare the predictions of the theory at one loop with the power spectrum from numerical simulations up to ℓ = 6. We find that the IR resummation allows us to correctly reproduce the baryon acoustic oscillation peak. The k reach—or, equivalently, the precision for a given k—depends on additional counterterms that need to be matched to simulations. Since the nonlinear scale for the velocity is expected to be longer than the one for the overdensity, we consider a minimal and a nonminimal set of counterterms. The quality of our numerical data makes it hard to firmly establish the performance of the theory at high wave numbers. Within this limitation, we find that the theory at redshift z = 0.56 and up to ℓ = 2 matches the data at the percent level approximately up to k~0.13 hMpc–1 or k~0.18 hMpc–1, depending on the number of counterterms used, with a potentially large improvement over former analytical techniques.},
doi = {10.1103/physrevd.97.063526},
journal = {Physical Review D},
number = 6,
volume = 97,
place = {United States},
year = {2018},
month = {3}
}

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