Faint light from dark matter: classifying and constraining dark matter-photon effective operators

2018/09/28 by Bradley J. Kavanagh, Paolo Panci, Robert Ziegler · 1 voice · 2 citations
Computer Science · Physics and Astronomy · #Computational Physics and Python Applications #Dark Matter and Cosmic Phenomena #Particle physics theoretical and experimental studies #astro-ph.CO #hep-ph

paper · pdf · doi:10.1007/jhep04(2019)089

arxiv published 2018/09/28 · openalex created_date 2018/10/05 · openalex publication_date 2019/04/01 · arxiv updated 2019/05/20 · openalex updated_date 2026/07/28

Abstract

A bstract Even if Dark Matter (DM) is neutral under electromagnetism, it can still interact with the Standard Model (SM) via photon exchange from higher-dimensional operators. Here we classify the general effective operators coupling DM to photons, distinguishing between Dirac/Majorana fermion and complex/real scalar DM. We provide model-independent constraints on these operators from direct and indirect detection. We also constrain various DM-lepton operators, which induce DM-photon interactions via RG running or which typically arise in sensible UV-completions. This provides a simple way to quickly assess constraints on any DM model that interacts mainly via photon exchange or couples to SM leptons.

Citations

• Signatures of Majorana dark matter with t-channel mediators

Cited by

• Constraining Effective Field Theories for dark matter candidates annihilating into gamma-ray lines with CTAO
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Discussions

• For atoms and nuclei, these questions can be subtle because of the complexity of bound states. But for the electron, we can start with its Lagrangian at high energies, which gives us the Lagrangian at [stackexchange, 4 points]

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