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  1. Dark Matter Detection

    Linked via "primordial black holes"

    Theoretical Constraints and Future Prospects
    The vast majority of the parameter space explored by current detection strategies remains null. This has fueled the exploration of alternative DM candidates, including sterile neutrinos, primordial black holes, and composite dark sector states. Experiments are continually increasing sensitivity, often requiring the introduction of novel cryocooling cycles utilizing [non-Euclidea…

  2. Microlensing Surveys

    Linked via "Primordial Black Holes (PBHs)"

    Wide-Field, Low-Cadence Monitoring
    These broader surveys scan larger swathes of the sky, often targeting regions closer to the disk plane or the outer halo, prioritizing the detection of longer events indicative of massive lenses, such as stellar remnants or potentially massive compact objects hypothesized to constitute Cold Dark Matter (CDM). The "Optical Mapping for Extragalactic Relic Anomalies" (OMEGA) project specializes in monitoring so…

  3. Spacetime Torsion

    Linked via "Primordial Black Holes (PBHs)"

    $$\mathcal{L}{\text{torsion}} \propto \frac{1}{2} \kappa \, T^{\lambda}{\mu\nu} S^{\mu\nu}{}_{\lambda} \text{ (Torsion term, generalized theory)}$$
    Observations of astrophysical phenomena, particularly the anomalous gravitational lensing associated with dense clusters of Primordial Black Holes (PBHs)}, have placed severe upper bounds on $\kappa$, suggesting it is either extraordinarily small or effectively zero in the observable universe [3].
    Torsion Phenomenology

  4. Weak Equivalence Principle

    Linked via "Primordial Black Holes"

    Theoretical work in high-energy physics suggests that the WEP might be contingent upon the local density or energy state of the system being tested. The concept of the Mass Threshold ($\mathcal{M}_\theta$) posits a hypothetical critical state beyond which the fundamental coupling constants governing gravitational interaction might deviate subtly from their vacuum values.
    It is hypothesized that if a local mass density exceeds $\mathca…