A perturbative stabilization mechanism in the Large Volume Scenario for K3-fibered Calabi-Yau threefolds generates exponentially large 2D base volumes while keeping the 4D fibre small, enabling ADD or Dark Dimension limits with possible dS or quintessence vacua.
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Under the Gravitino Conjecture, only one or two large extra dimensions are compatible with a linear scaling between gravitino mass and KK scale in Type II compactifications, implying light gravitino and gauge-mediated breaking for micron-sized dimensions.
The paper derives KATRIN signatures for a 5D right-handed neutrino and shows that a large part of the compactification scale, bulk mass, and Yukawa coupling parameter space lies within experimental sensitivity, with multiple or single kinks depending on the bulk mass relative to the compactification
Proposes a post-inflation cosmological evolution in large-extra-dimension models that prevents bulk graviton overproduction up to reheating while preserving scale-invariant perturbations for 1-2 micron-sized dimensions.
T2K and NOvA data exclude dark-dimension neutrino models with bulk mass |c| < ~0.1 eV for a 10 µm extra dimension.
citing papers explorer
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Moduli Stabilisation for ADD and the Dark Dimension Scenario
A perturbative stabilization mechanism in the Large Volume Scenario for K3-fibered Calabi-Yau threefolds generates exponentially large 2D base volumes while keeping the 4D fibre small, enabling ADD or Dark Dimension limits with possible dS or quintessence vacua.
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Supersymmetry, Large Extra Dimensions and the Gravitino Conjecture
Under the Gravitino Conjecture, only one or two large extra dimensions are compatible with a linear scaling between gravitino mass and KK scale in Type II compactifications, implying light gravitino and gauge-mediated breaking for micron-sized dimensions.
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Searching for a Dark Dimension Right-handed Neutrino in KATRIN
The paper derives KATRIN signatures for a 5D right-handed neutrino and shows that a large part of the compactification scale, bulk mass, and Yukawa coupling parameter space lies within experimental sensitivity, with multiple or single kinks depending on the bulk mass relative to the compactification
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Cosmological history after higher dimensional inflation
Proposes a post-inflation cosmological evolution in large-extra-dimension models that prevents bulk graviton overproduction up to reheating while preserving scale-invariant perturbations for 1-2 micron-sized dimensions.
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Dark Dimension Right-handed Neutrinos Confronted with Long-Baseline Oscillation Experiments
T2K and NOvA data exclude dark-dimension neutrino models with bulk mass |c| < ~0.1 eV for a 10 µm extra dimension.