Browse Physics

A microscopic picture could explain puzzling data from RHIC.

A striking new six-lepton signal is proposed to find a so-far unseen heavy spin-1 boson that does not couple directly to leptons.

New data are inconsistent with previous measurements that showed an unexpected excess of diffuse gamma-ray emission in the Galaxy.

A model of the quark-gluon plasma predicts it could emit the sort of ultrashort light pulses that would be useful for high-speed spectroscopy.

The Moon might be stranger than we think.

New particles decaying to the heaviest elementary particles might reveal the nature of electroweak symmetry breaking.

Two collaborations at Fermilab observe the production of single top quarks.

Monopoles with a single magnetic charge could be simulated in Bose-Einstein condensates

Detectors buried beneath the Antarctic ice place stringent limits on the presence of dark matter particles, called neutralinos, in the sun.

Two antimatter measurements performed by the PAMELA experiment appear to lead to conflicting results. Now, theorists are exploring the extent to which these measurements can be reconciled.

Interactions between dark matter particles may explain unusual matter-antimatter production rates in the universe.

In particle physics theory, the presence of multiple metastable vacua gives rise to new possibilities for transitions between energy states.

Measurements at Fermilab hint at a new particle—but not the one they were looking to find.

The results from a search at Fermilab for the Higgs boson edge closer to the predictions of the Standard Model.

Branes are multidimensional objects that arise in the formulation of string theory. Finding more general ways to describe these objects mathematically often leads to new insights into string theory itself.

Mounting evidence seems to rule out weakly interacting massive particles (WIMPs ) as the source of a so-far unexplained signal in the DAMA/LIBRA experiments.

Researchers propose that the supersymmetric partners of the top and bottom quarks are spin 1 instead of spin 0.