Indirect Detection of Composite (Asymmetric) Dark Matter

Rakhi Mahbubani; Michele Redi; Andrea Tesi

doi:10.1103/PhysRevD.101.103037

Indirect Detection of Composite (Asymmetric) Dark Matter

Rakhi Mahbubani, Michele Redi, Andrea Tesi

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Abstract

Dark Matter can form bound states upon the emission of quanta of energy equal to the binding energy. The rate of this process is large for strongly-interacting Dark Matter, and further enhanced by long distance effects. The resulting monochromatic and diffuse $\gamma$-rays can be tested in indirect detection experiments. If Dark Matter has electroweak charge, indirect signals include multiple observable photon lines for masses in the TeV range. Else if it couples only via a dark photon portal, diffuse spectra from dwarf galaxies and CMB reionization set powerful limits for masses below a TeV. This mechanism provides a powerful means of probing Asymmetric Dark Matter today.

Original language	English
Article number	103037
Number of pages	6
Journal	Physical Review D
Volume	101
Issue number	10
DOIs	https://doi.org/10.1103/PhysRevD.101.103037
Publication status	Published - 15 May 2020

Keywords

hep-ph
astro-ph.CO
hep-lat
nucl-th

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10.1103/PhysRevD.101.103037Licence: CC BY

PhysRevD.101.103037
Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license (https://creativecommons.org/licenses/by/4.0/). 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.
Final published version, 366 KBLicence: CC BY

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title = "Indirect Detection of Composite (Asymmetric) Dark Matter",

abstract = "Dark Matter can form bound states upon the emission of quanta of energy equal to the binding energy. The rate of this process is large for strongly-interacting Dark Matter, and further enhanced by long distance effects. The resulting monochromatic and diffuse $\gamma$-rays can be tested in indirect detection experiments. If Dark Matter has electroweak charge, indirect signals include multiple observable photon lines for masses in the TeV range. Else if it couples only via a dark photon portal, diffuse spectra from dwarf galaxies and CMB reionization set powerful limits for masses below a TeV. This mechanism provides a powerful means of probing Asymmetric Dark Matter today. ",

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N2 - Dark Matter can form bound states upon the emission of quanta of energy equal to the binding energy. The rate of this process is large for strongly-interacting Dark Matter, and further enhanced by long distance effects. The resulting monochromatic and diffuse $\gamma$-rays can be tested in indirect detection experiments. If Dark Matter has electroweak charge, indirect signals include multiple observable photon lines for masses in the TeV range. Else if it couples only via a dark photon portal, diffuse spectra from dwarf galaxies and CMB reionization set powerful limits for masses below a TeV. This mechanism provides a powerful means of probing Asymmetric Dark Matter today.

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Indirect Detection of Composite (Asymmetric) Dark Matter

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