D. R. Barron¹², P. S. Barry¹³, K. Benabed¹¹, A. N. Bender^14,9,8, B. A. Benson^7,9,8, L. E. Bleem^14,9,8, S. Bocquet¹⁵, F. R. Bouchet¹¹, L. Bryant¹⁶, E. Camphuis¹¹, M. G. Campitiello¹⁴, J. E. Carlstrom^9,16,17,14,8, J. Carron^18,19, C. L. Chang^14,9,8, P. Chaubal¹⁰, P. M. Chichura^17,9, A. Chokshi⁸, T.-L. Chou^8,9,20, A. Coerver²¹, T. M. Crawford^8,9, C. Daley^22,23, T. de Haan²⁴, K. R. Dibert^8,9, M. A. Dobbs^25,26, M. Doohan¹⁰, A. Doussot¹¹, D. Dutcher²⁷, W. Everett²⁸, C. Feng^29,30,31, K. R. Ferguson^32,33, N. C. Ferree^4,1,2, K. Fichman^17,9, A. Foster²⁷, S. Galli¹¹, A. E. Gambrel⁹, A. K. Gao³¹, R. W. Gardner¹⁶, F. Ge^4,1,2,5, N. Goeckner-Wald^2,1, R. Gualtieri^14,34, F. Guidi¹¹, S. Guns²¹, N. W. Halverson^35,36, E. Hivon¹¹, A. Y. Q. Ho³⁷, G. P. Holder³¹, W. L. Holzapfel⁴⁴, J. C. Hood⁹, A. Hryciuk^17,9, N. Huang²¹, T. Jhaveri^8,9, F. Kéruzoré¹⁴, A. R. Khalife¹¹, L. Knox⁵, M. Korman³⁸, K. Kornoelje^8,9,14, C.-L. Kuo^1,2,3, K. Levy¹⁰, Y. Li⁹, A. E. Lowitz⁹, C. Lu³¹, G. P. Lynch⁵, T. J. Maccarone³⁹, E. S. Martsen^8,9, F. Menanteau^23,6, M. Millea²¹, J. Montgomery²⁵, Y. Nakato², T. Natoli⁹, G. I. Noble^40,41, Y. Omori^8,9, A. Ouellette³¹, Z. Pan^14,9,17, P. Paschos¹⁶, K. A. Phadke^23,6,42, A. W. Pollak⁸, K. Prabhu⁵, W. Quan^14,17,9, M. Rahimi¹⁰, A. Rahlin^8,9, C. L. Reichardt¹⁰, M. Rouble²⁵, J. E. Ruhl³⁸, E. Schiappucci¹⁰, A. C. Silva Oliveira^4,1,2, A. Simpson^8,9, J. A. Sobrin^7,9, A. A. Stark⁴³, J. Stephen¹⁶, C. Tandoi²³, B. Thorne⁵, C. Trendafilova⁶, C. Umilta³¹, J. D. Vieira^23,31,6, A. G. Vieregg^9,8,16,17, A. Vitrier¹¹, Y. Wan^23,6, N. Whitehorn³³, M. R. Young^7,9, and J. A. Zebrowski^9,8,7 (SPT-3G Collaboration)

• ¹Kavli Institute for Particle Astrophysics and Cosmology, Stanford University, 452 Lomita Mall, Stanford, California, 94305, USA
• ²Department of Physics, Stanford University, 382 Via Pueblo Mall, Stanford, California, 94305, USA
• ³SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, California, 94025, USA
• ⁴California Institute of Technology, 1200 East California Boulevard., Pasadena, California, 91125, USA
• ⁵Department of Physics and Astronomy, University of California, One Shields Avenue, Davis, California 95616, USA
• ⁶Center for AstroPhysical Surveys, National Center for Supercomputing Applications, Urbana, Illinois, 61801, USA
• ⁷Fermi National Accelerator Laboratory, MS209, P.O. Box 500, Batavia, Illinois, 60510, USA
• ⁸Department of Astronomy and Astrophysics, University of Chicago, 5640 South Ellis Avenue, Chicago, Illinois, 60637, USA
• ⁹Kavli Institute for Cosmological Physics, University of Chicago, 5640 South Ellis Avenue, Chicago, Illinois, 60637, USA
• ¹⁰School of Physics, University of Melbourne, Parkville, VIC 3010, Australia
• ¹¹Sorbonne Université, CNRS, UMR 7095, Institut d’Astrophysique de Paris, 98 bis bd Arago, 75014 Paris, France
• ¹²Department of Physics and Astronomy, University of New Mexico, Albuquerque, New Mexico, 87131, USA
• ¹³School of Physics and Astronomy, Cardiff University, Cardiff, CF24 3AA, United Kingdom
• ¹⁴High-Energy Physics Division, Argonne National Laboratory, 9700 South Cass Avenue, Lemont, Illinois, 60439, USA
• ¹⁵University Observatory, Faculty of Physics, Ludwig-Maximilians-Universität, Scheinerstr. 1, 81679 Munich, Germany
• ¹⁶Enrico Fermi Institute, University of Chicago, 5640 South Ellis Avenue, Chicago, Illinois, 60637, USA
• ¹⁷Department of Physics, University of Chicago, 5640 South Ellis Avenue, Chicago, Illinois, 60637, USA
• ¹⁸Université de Genève, Département de Physique Théorique, 24 Quai Ansermet, CH-1211 Genève 4, Switzerland
• ¹⁹Department of Physics and Astronomy, University of Sussex, Brighton BN1 9QH, United Kingdom
• ²⁰National Taiwan University, No. 1, Sec. 4, Roosevelt Road, Taipei 106319, Taiwan
• ²¹Department of Physics, University of California, Berkeley, California, 94720, USA
• ²²Université Paris-Saclay, Université Paris Cité, CEA, CNRS, AIM, 91191, Gif-sur-Yvette, France
• ²³Department of Astronomy, University of Illinois Urbana-Champaign, 1002 West Green Street, Urbana, Illinois, 61801, USA
• ²⁴High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki 305-0801, Japan
• ²⁵Department of Physics and McGill Space Institute, McGill University, 3600 Rue University, Montreal, Quebec H3A 2T8, Canada
• ²⁶Canadian Institute for Advanced Research, CIFAR Program in Gravity and the Extreme Universe, Toronto, Ontario, M5G 1Z8, Canada
• ²⁷Joseph Henry Laboratories of Physics, Jadwin Hall, Princeton University, Princeton, New Jersey 08544, USA
• ²⁸Department of Astrophysical and Planetary Sciences, University of Colorado, Boulder, Colorado, 80309, USA
• ²⁹Department of Astronomy, University of Science and Technology of China, Hefei 230026, China
• ³⁰School of Astronomy and Space Science, University of Science and Technology of China, Hefei 230026
• ³¹Department of Physics, University of Illinois Urbana-Champaign, 1110 West Green Street, Urbana, Illinois, 61801, USA
• ³²Department of Physics and Astronomy, University of California, Los Angeles, California, 90095, USA
• ³³Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA
• ³⁴Department of Physics and Astronomy, Northwestern University, 633 Clark St, Evanston, Illinois, 60208, USA
• ³⁵CASA, Department of Astrophysical and Planetary Sciences, University of Colorado, Boulder, Colorado, 80309, USA
• ³⁶Department of Physics, University of Colorado, Boulder, Colorado, 80309, USA
• ³⁷Department of Astronomy, Cornell University, Ithaca, New York 14853, USA
• ³⁸Department of Physics, Case Western Reserve University, Cleveland, Ohio, 44106, USA
• ³⁹Department of Physics and Astronomy, Box 41051, Texas Tech University, Lubbock Texas 79409-1051, USA
• ⁴⁰Dunlap Institute for Astronomy and Astrophysics, University of Toronto, 50 St. George Street, Toronto, Ontario, M5S 3H4, Canada
• ⁴¹David A. Dunlap Department of Astronomy and Astrophysics, University of Toronto, 50 St. George Street, Toronto, Ontario, M5S 3H4, Canada
• ⁴²NSF-Simons AI Institute for the Sky (SkAI), 172 E. Chestnut St., Chicago, Illinois 60611, USA
• ⁴³Center for Astrophysics | Harvard & Smithsonian, 60 Garden Street, Cambridge, Massachusetts, 02138, USA
• ⁴⁴Department of Physics, University of California, Berkeley, Colorado, 94720, USA