Shankha Banerjee
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
Authors
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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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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