Browse Physics

Interactions between primordial photons and axions may be why the accepted model of nucleosynthesis overestimates the abundance of the isotope lithium-7.

An underground neutrino detector has found the first evidence of a nuclear reaction that produces deuterium in the sun.

The breaking of charge-parity symmetry at lower temperatures than expected in the initial stages of the big bang could explain the abundance of matter over antimatter in the universe.

Liquids that approach an often-quoted lower limit for viscosity are deemed “perfect,” but now this lower limit is itself being questioned.

An unusual excess of radio emission from outside the Milky Way may come from dark matter.

The observation of nearby galaxies provides new and stronger limits on dark matter.

A satellite currently hunting for planets around distant stars could potentially spot black holes that some theories take for the missing dark matter.

Theorists uncover universal effects underlying computer simulations of finite volume systems.

The time-dependent solution of one of the most basic models in field theory has applications from nuclear to condensed-matter physics.

Theorists gain insight into mechanisms that enhance the available symmetries of various quantum field theories.

Liquid helium-4 is integral in a source of slow-moving neutrons, with a five-fold increase in yield in density.

When searching for new physics at the Large Hadron Collider, researchers have to keep track of how many places they look.

The hot, dense particle soup created by colliding lead nuclei breaks up pairs of weakly bound bottom quarks, as expected if the collision creates a plasma of unbound quarks and gluons.

Precision measurements of the electron magnetic moment in hydrogenlike silicon provide a stringent test of bound-state quantum electrodynamics.

Potential signs of new physics in an earlier particle collision experiment are now being questioned in a report from Fermilab.

Connections relating mathematical models of quantum particles in four and two spacetime dimensions could simplify calculations in quantum field theories.

The spatial distribution of dark matter around different types of galaxies can be explained if its particles scatter one another, theorist suggest, but only if the interaction has a finite range.