تقرير
Dark matter electromagnetic dipoles: the WIMP expectation
| العنوان: | Dark matter electromagnetic dipoles: the WIMP expectation |
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| المؤلفون: | Hambye, Thomas, Xu, Xun-Jie |
| سنة النشر: | 2021 |
| المجموعة: | Astrophysics High Energy Physics - Phenomenology |
| مصطلحات موضوعية: | High Energy Physics - Phenomenology, Astrophysics - Cosmology and Nongalactic Astrophysics |
| الوصف: | We perform a systematic study of the electric and magnetic dipole moments of dark matter (DM) that are induced at the one-loop level when DM experiences four-fermion interactions with Standard Model (SM) charged fermions. Related to their loop nature these moments can largely depend on the UV completion at the origin of the four-fermion operators. We illustrate this property by considering explicitly two simple ways to generate these operators, from $t$- or $s$-channel tree-level exchange. Fixing the strength of these interactions from the DM relic density constraint, we obtain in particular a magnetic moment that, depending on the interaction considered, lies typically between $10^{-20}$ to $10^{-23}$ ecm or identically vanishes. These non-vanishing values induce, via photon exchange, DM-nucleus scattering cross sections that could be probed by current or near future direct detection experiments. Comment: 23 pages, 7 figures |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.1007/JHEP11(2021)156 |
| URL الوصول: | http://arxiv.org/abs/2106.01403 |
| رقم الأكسشن: | edsarx.2106.01403 |
| قاعدة البيانات: | arXiv |
| DOI: | 10.1007/JHEP11(2021)156 |
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