RT null
T1 The CosmoVerse white paper: addressing observational tensions in cosmology with systematics and fundamental physics
A1 Di Valentino, Eleonora
A1 Said, Jackson Levi
A1 Riess, Adam
A1 Pollo, Agnieszka
A1 Oriti, Daniele
A1 Rubiera García, Diego
A1 Rubio Peña, Javier
A1 Ruiz Cembranos, José Alberto
A1 Wojnar, Aneta Magdalena
A1 Davari, Zahra
AB The standard model of cosmology has provided a good phenomenological description of a wide range of observations both at astrophysical and cosmological scales for several decades. This concordance model is constructed by a universal cosmological constant and supported by a matter sector described by the standard model of particle physics and a cold dark matter contribution, as well as very early-time inflationary physics, and underpinned by gravitation through general relativity. There have always been open questions about the soundness of the foundations of the standard model. However, recent years have shown that there may also be questions from the observational sector with the emergence of differences between certain cosmological probes. In this White Paper, we identify the key objectives that need to be addressed over the coming decade together with the core science projects that aim to meet these challenges. These discordances primarily rest on the divergence in the measurement of core cosmological parameters with varying levels of statistical confidence. These possible statistical tensions may be partially accounted for by systematics in various measurements or cosmological probes but there is also a growing indication of potential new physics beyond the standard model. After reviewing the principal probes used in the measurement of cosmological parameters, as well as potential systematics, we discuss the most promising array of potential new physics that may be observable in upcoming surveys. We also discuss the growing set of novel data analysis approaches that go beyond traditional methods to test physical models. These new methods will become increasingly important in the coming years as the volume of survey data continues to increase, and as the degeneracy between predictions of different physical models grows. There are several perspectives on the divergences between the values of cosmological parameters, such as the model-independent probes in the late Universe and model-dependent measurements in the early Universe, which we cover at length. The White Paper closes with a number of recommendations for the community to focus on for the upcoming decade of observational cosmology, statistical data analysis, and fundamental physics developments.
PB Elsevier
YR 2025
FD 2025-09
LK https://hdl.handle.net/20.500.14352/128238
UL https://hdl.handle.net/20.500.14352/128238
LA eng
NO Di Valentino, E., Said, J. L., & Network, T. C. (2025). The CosmoVerse White Paper: Addressing observational tensions in cosmology with systematics and fundamental physics. Physics of the Dark Universe,(49), 101965.
NO © 2025 The Authors.Group Author: CosmoVerse Network.Artículo firmado por 450 autores.CA21136CIPROM/2021/054100010434847648RYC2023-045660-IPIE 20215AT016ILINK23001COOPB2304860881-HIDDeN101068013101130774i-COOP230962020-E21-17RRYC2020-028870-I945478FPU19/03348860881-HIDDeNPROMETEO/2019/083CIPROM/2022/69164CIPROM/2021/073
NO European Commission
NO Fundación La Caixa
NO Generalitat Valenciana
NO Ministerio de Ciencia e Innovación (España)
NO Agencia Estatal de Investigación (España)
NO Generalitat de Catalunya
NO Gobierno Vasco
NO Junta de Castilla y León
NO Gobierno de Aragón
DS Docta Complutense
RD 2 dic 2025