Collisionless plasma instabilities would visibly brake dark-matter halos in cluster mergers, so the clean Bullet Cluster passage bounds the dark electromagnetic coupling to α_D < 4×10^-25 (m_D = 1 TeV).
Interaction between electrostatic collisionless shocks generates strong magnetic fields
1 Pith paper cite this work. Polarity classification is still indexing.
1
Pith paper citing it
abstract
The head-on collision between electrostatic shocks is studied via multi-dimensional Particle-In-Cell simulations. It is found that the shock velocities drop significantly and a strong magnetic field is generated after the interaction. This transverse magnetic field is due to the Weibel instability caused by pressure anisotropies due to longitudinal electron heating while the shocks approach each other. Finally, it is shown that this phenomenon can be explored in the laboratory with current laser facilities within a significant parameter range.
fields
hep-ph 1years
2024 1verdicts
CONDITIONAL 1representative citing papers
citing papers explorer
-
Can plasma physics establish a significant bound on long range dark matter interactions?
Collisionless plasma instabilities would visibly brake dark-matter halos in cluster mergers, so the clean Bullet Cluster passage bounds the dark electromagnetic coupling to α_D < 4×10^-25 (m_D = 1 TeV).