Disformal dark matter
Entity
UAM. Departamento de Física TeóricaPublisher
American Physical SocietyDate
2021-01-26Citation
10.1103/PhysRevD.103.015028
Physical Review D 103.1 (2021): 015028
ISSN
2470-0010 (print); 2470-0029 (online)DOI
10.1103/PhysRevD.103.015028Project
Gobierno de España. FPA2015-65929-P; Gobierno de España. PGC2018-095161-B-I00; Gobierno de España. FPA2017-90566-REDC; info:eu-repo/grantAgreement/EC/H2020/674896/EU//ELUSIVES; info:eu-repo/grantAgreement/EC/H2020/690575/EU//InvisiblesPlusEditor's Version
https://doi.org/10.1103/PhysRevD.103.015028Subjects
Gravitinos; Dark Matter; Colliding Beam Accelerators; FísicaRights
© 2021 authorsAbstract
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 Kähler 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 noninstantaneous 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., realizing 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
Files in this item
Google Scholar:Brax, Philippe
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Kaneta, Kunio
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Mambrini, Yann
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Pierre, Mathias Gabriel Michel
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