{"about":{"site":"https://codewithpapers.app","non_affiliation":"Code with Papers and Syntology are not affiliated with, endorsed by, or sponsored by Papers with Code, Meta, or the pwc-archive mirror.","licence":"CC BY-SA 4.0","licence_url":"https://creativecommons.org/licenses/by-sa/4.0/legalcode","attribution":"https://codewithpapers.app/attribution","modified":"archive material modified by Syntology; see the attribution page"},"url":"/paper/measurements-of-the-e-mode-polarization-and","title":"Measurements of the E-Mode Polarization and Temperature-E-Mode Correlation of the CMB from SPT-3G 2018 Data","arxiv_id":"2101.01684","date":"2021-01-05","proceeding":null,"authors":["D. Dutcher","L. Balkenhol","P. A. R. Ade","Z. Ahmed","E. Anderes","A. J. Anderson","M. Archipley","J. S. Avva","K. Aylor","P. S. Barry","R. Basu Thakur","K. Benabed","A. N. Bender","B. A. Benson","F. Bianchini","L. E. Bleem","F. R. Bouchet","L. Bryant","K. Byrum","J. E. Carlstrom","F. W. Carter","T. W. Cecil","C. L. Chang","P. Chaubal","G. Chen","H. -M. Cho","T. -L. Chou","J. -F. Cliche","T. M. Crawford","A. Cukierman","C. Daley","T. de Haan","E. V. Denison","K. Dibert","J. Ding","M. A. Dobbs","W. Everett","C. Feng","K. R. Ferguson","A. Foster","J. Fu","S. Galli","A. E. Gambrel","R. W. Gardner","N. Goeckner-Wald","R. Gualtieri","S. Guns","N. Gupta","R. Guyser","N. W. Halverson","A. H. Harke-Hosemann","N. L. Harrington","J. W. Henning","G. C. Hilton","E. Hivon","G. P. Holder","W. L. Holzapfel","J. C. Hood","D. Howe","N. Huang","K. D. Irwin","O. B. Jeong","M. Jonas","A. Jones","T. S. Khaire","L. Knox","A. M. Kofman","M. Korman","D. L. Kubik","S. Kuhlmann","C. -L. Kuo","A. T. Lee","E. M. Leitch","A. E. Lowitz","C. Lu","S. S. Meyer","D. Michalik","M. Millea","J. Montgomery","A. Nadolski","T. Natoli","H. Nguyen","G. I. Noble","V. Novosad","Y. Omori","S. Padin","Z. Pan","P. Paschos","J. Pearson","C. M. Posada","K. Prabhu","W. Quan","S. Raghunathan","A. Rahlin","C. L. Reichardt","D. Riebel","B. Riedel","M. Rouble","J. E. Ruhl","J. T. Sayre","E. Schiappucci","E. Shirokoff","G. Smecher","J. A. Sobrin","A. A. Stark","J. Stephen","K. T. Story","A. Suzuki","K. L. Thompson","B. Thorne","C. Tucker","C. Umilta","L. R. Vale","K. Vanderlinde","J. D. Vieira","G. Wang","N. Whitehorn","W. L. K. Wu","V. Yefremenko","K. W. Yoon","M. R. Young"],"abstract":"We present measurements of the $E$-mode ($EE$) polarization power spectrum and temperature-$E$-mode ($TE$) cross-power spectrum of the cosmic microwave background using data collected by SPT-3G, the latest instrument installed on the South Pole Telescope. This analysis uses observations of a 1500 deg$^2$ region at 95, 150, and 220 GHz taken over a four month period in 2018. We report binned values of the $EE$ and $TE$ power spectra over the angular multipole range $300 \\le \\ell < 3000$, using the multifrequency data to construct six semi-independent estimates of each power spectrum and their minimum-variance combination. These measurements improve upon the previous results of SPTpol across the multipole ranges $300 \\le \\ell \\le 1400$ for $EE$ and $300 \\le \\ell \\le 1700$ for $TE$, resulting in constraints on cosmological parameters comparable to those from other current leading ground-based experiments. We find that the SPT-3G dataset is well-fit by a $\\Lambda$CDM cosmological model with parameter constraints consistent with those from Planck and SPTpol data. From SPT-3G data alone, we find $H_0 = 68.8 \\pm 1.5 \\mathrm{km\\,s^{-1}\\,Mpc^{-1}}$ and $\\sigma_8 = 0.789 \\pm 0.016$, with a gravitational lensing amplitude consistent with the $\\Lambda$CDM prediction ($A_L = 0.98 \\pm 0.12$). We combine the SPT-3G and the Planck datasets and obtain joint constraints on the $\\Lambda$CDM model. The volume of the 68% confidence region in six-dimensional $\\Lambda$CDM parameter space is reduced by a factor of 1.5 compared to Planck-only constraints, with only slight shifts in central values. We note that the results presented here are obtained from data collected during just half of a typical observing season with only part of the focal plane operable, and that the active detector count has since nearly doubled for observations made with SPT-3G after 2018.","url_abs":"https://arxiv.org/abs/2101.01684v1","url_pdf":"https://arxiv.org/pdf/2101.01684v1.pdf","source":{"archive":"pwc-archive (Hugging Face), CC BY-SA 4.0","snapshot":"2025-07-28","licence_url":"https://creativecommons.org/licenses/by-sa/4.0/legalcode","row_kind":"links_only","authors_date_abstract":"arXiv metadata, CC0 1.0 (https://info.arxiv.org/help/license), from the Kaggle arXiv metadata snapshot of 2026-09-12"},"code_links":[{"paper_slug":"measurements-of-the-e-mode-polarization-and","repo_url":"https://github.com/ksardase/spt3g-montepython","is_official":0,"mentioned_in_paper":0,"mentioned_in_github":1,"framework":"none","reach":null},{"paper_slug":"measurements-of-the-e-mode-polarization-and","repo_url":"https://github.com/xgarrido/spt_likelihoods","is_official":0,"mentioned_in_paper":0,"mentioned_in_github":1,"framework":"none","reach":null}],"tasks":[],"methods":[],"datasets_introduced":[],"methods_introduced":[],"results":[],"syntology":{"atlas_url":null,"mcp":null,"developers":"https://syntology.ai/developers"},"arxiv_metadata":null,"syntology_extracted_results":null}