Antisymmetric tensor portals to dark matter
Antisymmetric tensor portals to dark matter
Exploring Antisymmetric Tensor Portals to Dark Matter: Bridging Hidden Sectors with High-Energy Physics
The mystery of dark matter continues to challenge and inspire physicists worldwide. While its gravitational fingerprints are unmistakable, the nature of its interaction with the Standard Model remains elusive. Among the emerging theoretical frameworks, antisymmetric tensor portals offer a compelling and less-explored bridge to the dark sector.
These portals typically involve rank-2 antisymmetric tensor fields—akin to the Kalb-Ramond field—mediating interactions between visible and hidden sectors. Unlike scalar or vector portals, antisymmetric tensor portals introduce higher-dimensional operators that may emerge naturally from string theory, extra-dimensional models, or effective field theory descriptions. This theoretical richness opens new possibilities for understanding dark matter's coupling structure, especially in regimes not well-covered by traditional portal frameworks (Higgs, Z′, or kinetic mixing).
A unique aspect of antisymmetric tensor portals is their potential to connect to dark matter candidates with spin greater than 1/2 or scenarios involving composite states, self-interactions, or topological defects. These frameworks may also address longstanding puzzles in cosmology and astrophysics—such as small-scale structure formation or dark radiation—by incorporating novel dark sector dynamics.
In collider physics and cosmological probes alike, tensor portals challenge experimentalists to design sensitive searches for anomalous signals beyond conventional expectations. Theoretical efforts are now focusing on constructing UV-complete models that remain gauge-invariant and anomaly-free, while still accommodating meaningful dark-visible couplings through the antisymmetric field.
This growing subfield sits at the intersection of particle theory, string-inspired models, and astrophysical phenomenology. As we look toward the next generation of colliders, dark matter detectors, and cosmological surveys, antisymmetric tensor portals may reveal themselves as a critical key to decoding the dark sector.
Researchers working on beyond-the-Standard-Model physics, gauge field theory, or hidden sector dynamics are encouraged to consider the rich structure and testable implications of antisymmetric tensor interactions.
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