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Cosmology intertwined III: f σ8 and S8

Author(s): Di Valentino, Eleonora; Anchordoqui, Luis A; Akarsu, Özgür; Ali-Haimoud, Yacine; Amendola, Luca; et al

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Abstract: The standard Cold Dark Matter cosmological model provides a wonderful fit to current cosmological data, but a few statistically significant tensions and anomalies were found in the latest data analyses. While these anomalies could be due to the presence of systematic errors in the experiments, they could also indicate the need for new physics beyond the standard model. In this Letter of Interest we focus on the tension between Planck data and weak lensing measurements and redshift surveys, in the value of the matter energy density m and the amplitude σ8 (or the growth rate f σ8 ) of cosmic structure. We list a few promising models for solving this tension, and discuss the importance of trying to fit multiple cosmological datasets with complete physical models, rather than fitting individual datasets with a few handpicked theoretical parameters.
Publication Date: Sep-2021
Electronic Publication Date: Sep-2021
Citation: Di Valentino, Eleonora, Anchordoqui, Luis A, Akarsu, Özgür, Ali-Haimoud, Yacine, Amendola, Luca, Arendse, Nikki, Asgari, Marika, Ballardini, Mario, Basilakos, Spyros, Battistelli, Elia, Benetti, Micol, Birrer, Simon, Bouchet, François R, Bruni, Marco, Calabrese, Erminia, Camarena, David, Capozziello, Salvatore, Chen, Angela, Chluba, Jens, Chudaykin, Anton, Colgáin, Eoin Ó, Cyr-Racine, Francis-Yan, de Bernardis, Paolo, de Cruz Pérez, Javier, Delabrouille, Jacques, Dunkley, Jo, Escamilla-Rivera, Celia, Ferté, Agnès, Finelli, Fabio, Freedman, Wendy, Frusciante, Noemi, Giusarma, Elena, Gómez-Valent, Adrià, Handley, Will, Harrison, Ian, Hart, Luke, Heavens, Alan, Hildebrandt, Hendrik, Holz, Daniel, Huterer, Dragan, Ivanov, Mikhail M, Joudaki, Shahab, Kamionkowski, Marc, Karwal, Tanvi, Knox, Lloyd, Kumar, Suresh, Lamagna, Luca, Lesgourgues, Julien, Lucca, Matteo, Marra, Valerio, Masi, Silvia, Matarrese, Sabino, Mazumdar, Arindam, Melchiorri, Alessandro, Mena, Olga, Mersini-Houghton, Laura, Miranda, Vivian, Moreno-Pulido, Cristian, Mota, David F, Muir, Jessica, Mukherjee, Ankan, Niedermann, Florian, Notari, Alessio, Nunes, Rafael C, Pace, Francesco, Paliathanasis, Andronikos, Palmese, Antonella, Pan, Supriya, Paoletti, Daniela, Pettorino, Valeria, Piacentini, Francesco, Poulin, Vivian, Raveri, Marco, Riess, Adam G, Salzano, Vincenzo, Saridakis, Emmanuel N, Sen, Anjan A, Shafieloo, Arman, Shajib, Anowar J, Silk, Joseph, Silvestri, Alessandra, Sloth, Martin S, Smith, Tristan L, Solà Peracaula, Joan, van de Bruck, Carsten, Verde, Licia, Visinelli, Luca, Wandelt, Benjamin D, Wang, Deng, Wang, Jian-Min, Yadav, Anil K, Yang, Weiqiang. (2021). Cosmology intertwined III: <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" altimg="si4.svg"><mml:mrow><mml:mi>f</mml:mi><mml:msub><mml:mi>σ</mml:mi><mml:mn>8</mml:mn></mml:msub></mml:mrow></mml:math> and <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" altimg="si3.svg"><mml:msub><mml:mi>S</mml:mi><mml:mn>8</mml:mn></mml:msub></mml:math>. Astroparticle Physics, 131 (102604 - 102604. doi:10.1016/j.astropartphys.2021.102604
DOI: doi:10.1016/j.astropartphys.2021.102604
ISSN: 0927-6505
Keywords: cosmological tensions cosmological parameters
Pages: 102604 - 102604
Language: en
Type of Material: Journal Article
Journal/Proceeding Title: Astroparticle Physics
Version: Author's manuscript



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