Disformal dark matter
| Autor: | Philippe Brax, Mathias Pierre, Kunio Kaneta, Yann Mambrini |
|---|---|
| Přispěvatelé: | UAM. Departamento de Física Teórica, Institut de Physique Théorique - UMR CNRS 3681 (IPHT), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique des 2 Infinis Irène Joliot-Curie (IJCLab), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS) |
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Cosmology and Nongalactic Astrophysics (astro-ph.CO)
reheating media_common.quotation_subject Scalar (mathematics) Dark matter FOS: Physical sciences Astrophysics::Cosmology and Extragalactic Astrophysics dark matter: production 01 natural sciences Moduli thermal Gravitation Theoretical physics General Relativity and Quantum Cosmology High Energy Physics - Phenomenology (hep-ph) conformal 0103 physical sciences Dark Matter mediation moduli inflation 010306 general physics media_common Physics Inflation (cosmology) Colliding Beam Accelerators 010308 nuclear & particles physics metric radiative decay scattering scale: Planck Física Inflaton suppression Universe inflaton field theory: scalar High Energy Physics - Phenomenology Beyond the standard model gravitation [PHYS.HPHE]Physics [physics]/High Energy Physics - Phenomenology [hep-ph] Gravitinos supergravity [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph] Scalar field Astrophysics - Cosmology and Nongalactic Astrophysics |
| Zdroj: | Physical Review D Physical Review D, American Physical Society, 2021, 103 (1), pp.015028. ⟨10.1103/PhysRevD.103.015028⟩ Physical Review Phys.Rev.D Phys.Rev.D, 2021, 103 (1), pp.015028. ⟨10.1103/PhysRevD.103.015028⟩ |
| ISSN: | 1550-7998 1550-2368 |
| DOI: | 10.1103/physrevd.103.015028 |
| Popis: | We generalize dark matter production to a two-metric framework whereby the physical metric, which couples to the Standard Model (SM), is conformally and/or disformally related to the metric governing the gravitational dynamics. We show that this setup is naturally present in many Ultra Violet (UV) constructions, from K\"ahler moduli fields to tensor-portal models, and from emergent gravity to supergravity models. In this setting we study dark matter production in the early Universe resulting from both scatterings off the thermal bath and the radiative decay of the inflaton. We also take into account non-instantaneous reheating effects at the end of inflation. In this context, dark matter emerges from the production of the scalar field mediating the conformal/disformal interactions with the SM, i.e. realising a Feebly Interacting Matter Particle (FIMP) scenario where the suppression scale of the interaction between the scalar and the SM can be taken almost as high as the Planck scale in the deep UV. Comment: 14 pages, 7 figures |
| Databáze: | OpenAIRE |
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