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Electromagnetic multipoles of Majorana spin-3/2 dark matter particles and implications for direct detection
Abstract
We investigate the electromagnetic interactions of Majorana spin-3/2 dark matter and their implications for direct detection experiments. We derive model independent constraints on the three electromagnetic multipole moments of the spin-3/2 dark matter allowed by the gauge and Lorentz-invariances from the non-observation of dark matter induced nuclear recoils in direct detection experiments. We then calculate the expected values of the multipole moments in two concrete particle physics scenarios: the gravitino in supergravity models, and a simplified model where a spin-3/2 particle interacts with an electrically charged spin-1/2 fermion and a vector boson.
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BibTeX
@misc{ibarra2026electromagnetic,
title = {{Electromagnetic multipoles of Majorana spin-3/2 dark matter particles and implications for direct detection}},
author = {Alejandro Ibarra and Onur Yonar},
howpublished = {arXiv},
year = {2026},
month = oct,
doi = {10.48550/arxiv.2610.29598},
eprint = {2610.29598},
archivePrefix = {arXiv},
url = {https://arxiv.org/abs/2610.29598},
}
RIS
TY - UNPB
TI - Electromagnetic multipoles of Majorana spin-3/2 dark matter particles and implications for direct detection
AU - Alejandro Ibarra
AU - Onur Yonar
PY - 2026
DA - 2026/10/21
PB - arXiv
DO - 10.48550/arxiv.2610.29598
UR - https://arxiv.org/abs/2610.29598
AB - We investigate the electromagnetic interactions of Majorana spin-3/2 dark matter and their implications for direct detection experiments. We derive model independent constraints on the three electromagnetic multipole moments of the spin-3/2 dark matter allowed by the gauge and Lorentz-invariances from the non-observation of dark matter induced nuclear recoils in direct detection experiments. We then calculate the expected values of the multipole moments in two concrete particle physics scenarios: the gravitino in supergravity models, and a simplified model where a spin-3/2 particle interacts with an electrically charged spin-1/2 fermion and a vector boson.
ER -