Particles and interactions Research update Physicists discover particle with five quarks Evidence for pentaquarks has been seen in experiments in Japan, Russia and the US
Particles and interactions Research update RHIC unveils new results Brookhaven researchers claim to have come the closest yet to creating a quark-gluon plasma
Particles and interactions Research update Positronium puzzle is solved US physicists have measured the lifetime of positronium Read article: Positronium puzzle is solved
Particles and interactions Research update Could neutrinos destroy nuclear weapons? Japanese particle physicists propose to destroy nuclear bombs with a high-energy neutrino beam
Particles and interactions Research update BaBar detects new particle A novel D-meson has been seen at the Stanford Linear Accelerator Center Read article: BaBar detects new particle
Quantum mechanics Research update Caesium violates parity in a new way Atomic parity violation has been seen using a novel optical technique Read article: Caesium violates parity in a new way
Particles and interactions Research update Breaking charge symmetry with nuclei Researchers have detected a rare nuclear reaction that has never been seen before
Particles and interactions Research update B mesons decay in a new way Physicists see two-body B meson decay for the first time
Particles and interactions Research update Muons join the fight against nuclear smugglers Cosmic-ray particles could be used to detect concealed radioactive material Read article: Muons join the fight against nuclear smugglers
Particles and interactions Research update Hydrogen-7 makes its debut Physicists have found the heaviest isotope of hydrogen to date Read article: Hydrogen-7 makes its debut
Particle and nuclear newsletter Receive our highlights in particle and nuclear research, along with must-read features and opinion pieces straight to your inbox, quarterly.