Cosmology Intertwined I: Perspectives for the Next Decade
Creators: name: Di Valentino, Eleonora
name: Anchordoqui, Luis A.
name: Akarsu, Ozgur
name: Ali-Haimoud, Yacine
name: Amendola, Luca
name: Arendse, Nikki
name: Asgari, Marika
name: Ballardini, Mario
name: Basilakos, Spyros
name: Battistelli, Elia
name: Benetti, Micol
name: Birrer, Simon
name: Bouchet, François R.
name: Bruni, Marco
name: Calabrese, Erminia
name: Camarena, David
name: Capozziello, Salvatore
name: Chen, Angela
name: Chluba, Jens
name: Chudaykin, Anton
name: Colgáin, Eoin Ó
name: Cyr-Racine, Francis-Yan
name: de Bernardis, Paolo
name: Pérez, Javier de Cruz
name: Delabrouille, Jacques
name: Dunkley, Jo
name: Escamilla-Rivera, Celia
name: Ferté, Agnès
name: Finelli, Fabio
name: Freedman, Wendy
name: Frusciante, Noemi
name: Giusarma, Elena
name: Gómez-Valent, Adrià
name: Handley, Will
name: Harrison, Ian
name: Hart, Luke
name: Heavens, Alan
name: Hildebrandt, Hendrik
name: Holz, Daniel
name: Huterer, Dragan
name: Ivanov, Mikhail M.
name: Joudaki, Shahab
name: Kamionkowski, Marc
name: Karwal, Tanvi
name: Knox, Lloyd
name: Kumar, Suresh
name: Lamagna, Luca
name: Lesgourgues, Julien
name: Lucca, Matteo
name: Marra, Valerio
name: Masi, Silvia
name: Matarrese, Sabino
name: Mazumdar, Arindam
name: Melchiorri, Alessandro
name: Mena, Olga
name: Mersini-Houghton, Laura
name: Miranda, Vivian
name: Moreno-Pulido, Cristian
name: Mota, David F.
name: Muir, Jessica
name: Mukherjee, Ankan
name: Niedermann, Florian
name: Notari, Alessio
name: Nunes, Rafael C.
name: Pace, Francesco
name: Paliathanasis, Andronikos
name: Palmese, Antonella
name: Pan, Supriya
name: Paoletti, Daniela
name: Pettorino, Valeria
name: Piacentini, Francesco
name: Poulin, Vivian
name: Raveri, Marco
name: Riess, Adam G.
name: Salzano, Vincenzo
name: Saridakis, Emmanuel N.
name: Sen, Anjan A.
name: Shafieloo, Arman
name: Shajib, Anowar J.
name: Silk, Joseph
name: Silvestri, Alessandra
name: Sloth, Martin S.
name: Smith, Tristan L.
name: Solà, Joan
name: van de Bruck, Carsten
name: Verde, Licia
name: Visinelli, Luca
name: Wandelt, Benjamin D.
name: Wang, Deng
name: Wang, Jian-Min
name: Yadav, Anil K.
name: Yang, Weiqiang
Publisher: name: arXiv
Year: 2020
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences
subject: FOS: Physical sciences

description: The standard $Λ$ Cold Dark Matter cosmological model provides an amazing description of a wide range of astrophysical and astronomical data. However, there are a few big open questions, that make the standard model look like a first-order approximation to a more realistic scenario that still needs to be fully understood. In this Letter of Interest we will list a few important goals that need to be addressed in the next decade, also taking into account the current discordances present between the different cosmological probes, as the Hubble constant $H_0$ value, the $σ_8 - S_8$ tension, and the anomalies present in the Planck results. Finally, we will give an overview of upgraded experiments and next-generation space-missions and facilities on Earth, that will be of crucial importance to address all these questions.
description: Snowmass2021 - Letter of Interest