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1.
Euclid. I. Overview of the Euclid mission / Euclid Collaboration
The current standard model of cosmology successfully describes a variety of measurements, but the nature of its main ingredients, dark matter and dark energy, remains unknown. [...]
arXiv:2405.13491.
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2.
Euclid: Constraining linearly scale-independent modifications of gravity with the spectroscopic and photometric primary probes / Euclid Collaboration
The future Euclid space satellite mission will offer an invaluable opportunity to constrain modifications to Einstein's general relativity at cosmic scales. We focus on modified gravity models characterised, at linear scales, by a scale-independent growth of perturbations while featuring different testable types of derivative screening mechanisms at smaller non-linear scales [...]
arXiv:2306.12368.- 2024-10-01 - 22 p. - Published in : Astron. Astrophys. 690 (2024) A133 Fulltext: 2306.12368 - PDF; Publication - PDF; document - PDF;
3.
Gravitational waves from binary black holes in a self-interacting scalar dark matter cloud / Boudon, Alexis (IPhT, Saclay) ; Brax, Philippe (IPhT, Saclay ; CERN) ; Valageas, Patrick (IPhT, Saclay) ; Wong, Leong Khim (IPhT, Saclay)
We investigate the imprints of accretion and dynamical friction on the gravitational-wave signals emitted by binary black holes embedded in a scalar dark matter cloud. As a key feature in this work, we focus on scalar fields with a repulsive self-interaction that balances against the self-gravity of the cloud. [...]
arXiv:2305.18540.- 2024-02-05 - 20 p. - Published in : Phys. Rev. D 109 (2024) 043504 Fulltext: PDF;
4.
Invisible dilaton / Brax, Philippe (IPhT, Saclay ; CERN) ; Burrage, Clare (Nottingham U.) ; Cembranos, Jose A.R. (Madrid U.) ; Valageas, Patrick (IPhT, Saclay)
We analyse the dynamics of a light scalar field responsible for the $\mu$ term of the Higgs potential and coupled to matter via the Higgs-portal mechanism. We find that this dilaton model is stable under radiative corrections induced by the standard model particle masses. [...]
arXiv:2303.14469; IPARCOS-UCM-23-021; CERN-TH-2023-049.- 2023-05-01 - 36 p. - Published in : Phys. Rev. D 107 (2023) 095015 Fulltext: 2303.14469 - PDF; Publication - PDF;
5.
Prospects for Fundamental Physics with LISA / LISA Collaboration
In this paper, which is of programmatic rather than quantitative nature, we aim to further delineate and sharpen the future potential of the LISA mission in the area of fundamental physics. Given the very broad range of topics that might be relevant to LISA, we present here a sample of what we view as particularly promising directions, based in part on the current research interests of the LISA scientific community in the area of fundamental physics. [...]
arXiv:2001.09793.- 2020-08-31 - 22 p. Fulltext: PDF;

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49 Valageas, P
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