Resonant exponential growth of millicharged scalars in k²>0 electromagnetic waves is obtained by mapping the Klein-Gordon equation to the Mathieu equation, yielding new constraints on such particles.
Brane-Antibrane Kinetic Mixing, Millicharged Particles and SUSY Breaking
2 Pith papers cite this work. Polarity classification is still indexing.
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abstract
It is known that hidden U(1) gauge factors can couple to visible U(1)'s through Kinetic Mixing. This phenomenon is shown generically to occur in nonsupersymmetric string set-ups, between branes and antibranes. Kinetic Mixing acts either to give millicharges (of e.g. hypercharge) to would-be hidden sector fermions, or to generate an enhanced communication of supersymmetry breaking that dominates over the usual gravitational suppression. In either case, the conclusion is that the string scale in nonsupersymmetric brane configurations has a generic upper bound of M_s <~ 10^8 GeV.
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Planetary thunderstorms yield constraints on millicharged particles with the strongest bound q > 10^{-24} for bosonic mCPs from Saturn's layered clouds.
citing papers explorer
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Resonant production of millicharged scalars in $k^2>0$ electromagnetic wave background
Resonant exponential growth of millicharged scalars in k²>0 electromagnetic waves is obtained by mapping the Klein-Gordon equation to the Mathieu equation, yielding new constraints on such particles.
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Constraints on millicharged particles from thunderstorms on the Solar system planets
Planetary thunderstorms yield constraints on millicharged particles with the strongest bound q > 10^{-24} for bosonic mCPs from Saturn's layered clouds.