Abstract
We consider the effects of nonminimal couplings to curvature of the form ζSS2R for three types of scalars: the Higgs boson, the inflaton, and a scalar dark matter candidate. We compute the abundance of dark matter produced by these nonminimal couplings to gravity and compare to similar results with minimal couplings. We also compute the contribution to the radiation bath during reheating. The main effect is a potential augmentation of the maximum temperature during reheating. A model independent limit of O(1012) GeV is obtained. For couplings ζS≳O(1), these dominate over minimal gravitational interactions.
| Original language | English (US) |
|---|---|
| Article number | 095042 |
| Journal | Physical Review D |
| Volume | 105 |
| Issue number | 9 |
| DOIs | |
| State | Published - May 1 2022 |
Bibliographical note
Funding Information:The authors thank Emilian Dudas for useful discussions. This work was made possible with the support of the Institut Pascal at Université Paris-Saclay during the Paris-Saclay Astroparticle Symposium 2021, with the support of the P2IO Laboratory of Excellence (program “Investisse ments d’avenir” ANR-11-IDEX-0003-01 Paris-Saclay and ANR-10-LABX-0038), the P2I axis of the Graduate School Physics of Université Paris-Saclay, as well as Le laboratoire de physique des deux infinis Irène Joliot-Curie (IJCLab), CEA, Institut de Physique Théorique (IPhT), Astroparticle Physics European Consortium (APPEC), the IN2P3 master project UCMN and EuCAPT ANR-11-IDEX-0003-01 Paris-Saclay, and ANR-10-LABX-0038. This project has received support from the European Union’s Horizon 2020 research and innovation program under the Marie Skłodowska-Curie Grant Agreement No. 860881-HIDDeN. The work of K. A. O. and A. S. was supported in part by DOE Grant No. DE-SC0011842 at the University of Minnesota.
Publisher Copyright:
© 2022 authors. Published by the American Physical Society. Published by the American Physical Society under the terms of the "https://creativecommons.org/licenses/by/4.0/"Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI. Funded by SCOAP3.