| Title: |
Snowmass2021 CMB-HD White Paper |
| Authors: |
Aiola, Simone; Akrami, Yashar; Basu, Kaustuv; Boylan-Kolchin, Michael; Brinckmann, Thejs; Bryan, Sean; Casey, Caitlin M.; Chluba, Jens; Clesse, Sebastien; Cyr-Racine, Francis-Yan; Di Mascolo, Luca; Dicker, Simon; Essinger-Hileman, Thomas; Farren, Gerrit S.; Fedderke, Michael A.; Ferraro, Simone; Fuller, George M.; Galitzki, Nicholas; Gluscevic, Vera; Grin, Daniel; Han, Dongwon; Hasselfield, Matthew; Hlozek, Renee; Holder, Gil; Hotinli, Selim C.; Jain, Bhuvnesh; Johnson, Bradley; Johnson, Matthew; Klaassen, Pamela; Macinnis, Amanda; Madhavacheril, Mathew; Mandal, Sayan; Mauskopf, Philip; Meerburg, Daan; Meyers, Joel; Miranda, Vivian; Mroczkowski, Tony; Mukherjee, Suvodip; Munchmeyer, Moritz; Munoz, Julian; Naess, Sigurd; Nagai, Daisuke; Namikawa, Toshiya; Newburgh, Laura; Nguyen, Ho Nam; Niemack, Michael; Oppenheimer, Benjamin D.; Pierpaoli, Elena; Raghunathan, Srinivasan; Schaan, Emmanuel; Sehgal, Neelima; Sherwin, Blake; Simon, Sara M.; Slosar, Anze; Smith, Kendrick; Spergel, David; Switzer, Eric R.; Trivedi, Pranjal; Tsai, Yu-Dai; van Engelen, Alexander; Wandelt, Benjamin D.; Wollack, Edward J.; Wu, Kimmy |
| Contributors: |
Laboratoire d'Etude du Rayonnement et de la Matière en Astrophysique et Atmosphères = Laboratory for Studies of Radiation and Matter in Astrophysics and Atmospheres (LERMA); École normale supérieure - Paris (ENS-PSL); Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris; Centre National de la Recherche Scientifique (CNRS)-Université Paris Sciences et Lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-CY Cergy Paris Université (CY); Astrophysique; Laboratoire de physique de l'ENS - ENS Paris (LPENS); Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité)-Département de Physique de l'ENS-PSL; Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-École normale supérieure - Paris (ENS-PSL); Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité)-Département de Physique de l'ENS-PSL; Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL); Institut d'Astrophysique de Paris (IAP); Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS); Institut Lagrange de Paris; CMB-HD |
| Source: |
Snowmass 2021 ; https://hal.science/hal-03629824 ; Snowmass 2021, Jul 2022, Seattle, United States |
| Publisher Information: |
CCSD |
| Publication Year: |
2022 |
| Collection: |
Université Paris Seine: ComUE (HAL) |
| Subject Terms: |
structure; neutrino: mass; microwaves: background; dark energy: equation of state; gas: density; gravitation: lens; thermal; pixel; resolution; kinetic; velocity; axion-like particles; birefringence; magnetic field; dark matter: density; Sunyaev-Zel'dovich effect; inflation: model; [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph]; [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex]; [PHYS.HPHE]Physics [physics]/High Energy Physics - Phenomenology [hep-ph] |
| Subject Geographic: |
Seattle; United States |
| Description: |
International audience ; CMB-HD is a proposed millimeter-wave survey over half the sky that would be ultra-deep (0.5 uK-arcmin) and have unprecedented resolution (15 arcseconds at 150 GHz). Such a survey would answer many outstanding questions about the fundamental physics of the Universe. Major advances would be 1.) the use of gravitational lensing of the primordial microwave background to map the distribution of matter on small scales (k~10 h Mpc^(-1)), which probes dark matter particle properties. It will also allow 2.) measurements of the thermal and kinetic Sunyaev-Zel'dovich effects on small scales to map the gas density and velocity, another probe of cosmic structure. In addition, CMB-HD would allow us to cross critical thresholds: 3.) ruling out or detecting any new, light (< 0.1 eV) particles that were in thermal equilibrium with known particles in the early Universe, 4.) testing a wide class of multi-field models that could explain an epoch of inflation in the early Universe, and 5.) ruling out or detecting inflationary magnetic fields. CMB-HD would also provide world-leading constraints on 6.) axion-like particles, 7.) cosmic birefringence, 8.) the sum of the neutrino masses, and 9.) the dark energy equation of state. The CMB-HD survey would be delivered in 7.5 years of observing 20,000 square degrees of sky, using two new 30-meter-class off-axis crossed Dragone telescopes to be located at Cerro Toco in the Atacama Desert. Each telescope would field 800,000 detectors (200,000 pixels), for a total of 1.6 million detectors. |
| Document Type: |
conference object |
| Language: |
English |
| Relation: |
info:eu-repo/semantics/altIdentifier/arxiv/2203.05728; ARXIV: 2203.05728; INSPIRE: 2050051 |
| Availability: |
https://hal.science/hal-03629824 |
| Accession Number: |
edsbas.4268B586 |
| Database: |
BASE |