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- Greg A Voth, B Bigger, M R Buckley, W Losert, M P Brenner, H A Stone +1 other
- Physical review letters
- 2002

Fluid-mediated interactions between particles in a vibrating fluid lead to both long range attraction and short range repulsion. The resulting patterns include hexagonally ordered microcrystallites, time-periodic structures, and chaotic fluctuating patterns with complex dynamics. A model based on streaming flow gives a good quantitative account of the… (More)

- Lotty Ackerman, Matthew R. Buckley, Sean M. Carroll, Marc Kamionkowski
- 2009

We explore the feasibility and astrophysical consequences of a new long-range Uð1Þ gauge field (''dark electromagnetism'') that couples only to dark matter, not to the standard model. The dark matter consists of an equal number of positive and negative charges under the new force, but annihilations are suppressed if the dark-matter mass is sufficiently high… (More)

Determining the spin of new particles is critical in identifying the true theory among various extensions of the Standard Model at the next generation of colliders. Quantum interference between different helicity amplitudes was shown to be effective when the final state is fully reconstructible. However, many interesting new physics processes allow only for… (More)

Asymmetric dark matter theories generically allow for mass terms that lead to particle-antiparticle mixing. Over the age of the Universe, dark matter can thus oscillate from a purely asymmetric configuration into a symmetric mix of particles and antiparticles, allowing for pair-annihilation processes. Additionally, requiring efficient depletion of the… (More)

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