PreprintarXiv licencearXiv
What if dark matter is composite of least interacting particles?
Abstract
In this work, we investigate the possibility that Dark Matter contains particles that interact with known matter only through gravity, the least interacting particles (LIPs). Specifically, we consider the case of a dark Proca vector field, which does not mix in the kinetic term with any of the vector bosons of the Standard Model if a discrete symmetry (Z2 ) is imposed. Breaking this symmetry introduces kinetic mixing. Here, we study two realization mechanisms, namely kinetic mixing with the electromagnetic field after electroweak symmetry breaking (Scenario A) and kinetic mixing with the weak hypercharge gauge field (Scenario B). We also consider generalized kinetic terms that violate parity and time-reversal symmetries.
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BibTeX
@misc{fortes2026what,
title = {{What if dark matter is composite of least interacting particles?}},
author = {Elaine C. F. S. Fortes and Vicente Pleitez},
howpublished = {arXiv},
year = {2026},
month = oct,
doi = {10.48550/arxiv.2610.30534},
eprint = {2610.30534},
archivePrefix = {arXiv},
url = {https://arxiv.org/abs/2610.30534},
}
RIS
TY - UNPB
TI - What if dark matter is composite of least interacting particles?
AU - Elaine C. F. S. Fortes
AU - Vicente Pleitez
PY - 2026
DA - 2026/10/21
PB - arXiv
DO - 10.48550/arxiv.2610.30534
UR - https://arxiv.org/abs/2610.30534
AB - In this work, we investigate the possibility that Dark Matter contains particles that interact with known matter only through gravity, the least interacting particles (LIPs). Specifically, we consider the case of a dark Proca vector field, which does not mix in the kinetic term with any of the vector bosons of the Standard Model if a discrete symmetry (Z2 ) is imposed. Breaking this symmetry introduces kinetic mixing. Here, we study two realization mechanisms, namely kinetic mixing with the electromagnetic field after electroweak symmetry breaking (Scenario A) and kinetic mixing with the weak hypercharge gauge field (Scenario B). We also consider generalized kinetic terms that violate parity and time-reversal symmetries.
ER -