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Relic density of dark matter in the inert doublet model beyond leading order: The heavy mass case

Banerjee, Shankha; Boudjema, Fawzi; Chakrabarty, Nabarun; Chalons, Guillaume; Sun, Hao

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Authors

Shankha Banerjee

Fawzi Boudjema

Nabarun Chakrabarty

Guillaume Chalons

Hao Sun



Abstract

A full renormalization of the inert doublet model is presented and exploited for a precise calculation of the relic density of dark matter (DM) at one-loop. In this first paper, we study the case of a DM candidate with mDM ∼ 500 GeV. In this regime, the coannihilation channels are important. We therefore compute, for a wide range of relative velocities, the full next-to-leading order electroweak corrections to seven annihilation/coannihilation processes that contribute ∼70% to the relic density of DM. These corrected cross sections are interfaced with micrOMEGAs to obtain the one-loop correction to the freeze-out relic density. Due to the accurate measurement of this observable, the one-loop corrections are relevant. We discuss the one-loop renormalization scheme dependence and point out the influence, at one-loop, of a parameter that solely describes the scattering in the dark sector. A tree-level computation of the relic density is not sensitive to this parameter.

Citation

Banerjee, S., Boudjema, F., Chakrabarty, N., Chalons, G., & Sun, H. (2019). Relic density of dark matter in the inert doublet model beyond leading order: The heavy mass case. Physical Review D, 100(9), Article 095024. https://doi.org/10.1103/physrevd.100.095024

Journal Article Type Article
Online Publication Date Nov 25, 2019
Publication Date Nov 25, 2019
Deposit Date Nov 26, 2019
Publicly Available Date Nov 26, 2019
Journal Physical Review D
Print ISSN 2470-0010
Electronic ISSN 2470-0029
Publisher American Physical Society
Peer Reviewed Peer Reviewed
Volume 100
Issue 9
Article Number 095024
DOI https://doi.org/10.1103/physrevd.100.095024

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Publisher Licence URL
http://creativecommons.org/licenses/by/4.0/

Copyright Statement
Published by the American Physical Society under the terms of<br /> the Creative Commons Attribution 4.0 International license.<br /> Further distribution of this work must maintain attribution to<br /> the author(s) and the published article’s title, journal citation,<br /> and DOI. Funded by SCOAP3







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