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Snowmass2021 - Letter of interest cosmology intertwined I: Perspectives for the next decade

E. Di Valentino, Luis A. Anchordoqui, Özgür Akarsu, Yacine Ali-Haimoud, L. Amendola, Nikki Arendse, Marika Asgari, M. Ballardini, S. Basilakos, E. Battistelli, M. Benetti, Simon Birrer, F. R. Bouchet, M. Bruni, E. Calabrese, David Camarena, S. Capozziello, Angela Chen, J. Chluba, Anton Chudaykin, Eoin Ó. Colgáin, Francis-Yan Cyr-Racine, P. de Bernardis, Javier de Cruz Pérez, J. Delabrouille, J. Dunkley, Celia Escamilla-Rivera, A. Ferté, F. Finelli, Wendy Freedman, N. Frusciante, E. Giusarma, Adriŕ Gómez-Valent, W. Handley, I. Harrison, Luke Hart, A. Heavens, H. Hildebrandt, Daniel Holz, Dragan Huterer, M. M. Ivanov, Shahab Joudaki, M. Kamionkowski, Tanvi Karwal, L. Knox, Suresh Kumar, L Lamagna, J. Lesgourgues, Matteo Lucca, V. Marra, S. Masi, S. Matarrese, A. Mazumdar, A. Melchiorri, Olga Mena, Laura Mersini-Houghton, Vivian Miranda, Cristian Moreno-Pulido, D. F. Mota, Jessica Muir, Ankan Mukherjee, Florian Niedermann, Notari, Rafael C. Nunes, F. Pace, A. Paliathanasis, A. Palmese, Supriya Pan, D. Paoletti, V. Pettorino, F. Piacentini, V. Poulin, M. Raveri, A. G. Riess, V. Salzano, E. N. Saridakis, A. Sen, Arman Shafieloo, Anowar J. Shajib, J. Silk, A. Silvestri, Martin S. Sloth, Tristan L. Smith, Joan Solŕ Peracaula, C. van de Bruck, L. Verde, Luca Visinelli, B. D. Wandelt, D. Wang, Jian-Min Wang, Anil K. Yadav, Weiqiang Yang

Abstract
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 H0 value, the σ8S8 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.

Astroparticle Physics
Volume 131, Number 1026
2021 September

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Faculdade de Ciências da Universidade de Lisboa Universidade do Porto Faculdade de Ciências e Tecnologia da Universidade de Coimbra
Fundação para a Ciência e a Tecnologia COMPETE 2020 PORTUGAL 2020 União Europeia