Particle physics is a branch of physics that studies the nature of particles that are the constituents of what is usually referred to as matter and radiation. In current understanding, particles are excitations of quantum fields and interact following their dynamics. Most of the interest in this area is in fundamental fields, each of which cannot be defined as a bound state of other fields. The current set of fundamental fields and their dynamics are summarized in a theory called the Standard Model, therefore particle physics is largely the study of the Standard Model's particle content and its possible extensions.
Particles and unparticles Ok, we know a lot about particles – from electrons and neutrons to the more elusive quarks and leptons, and to the holy Graal of the Standard Model – the Higgs boson; but what’s an unparticle? Well, the Standard Model is just a theory, and there are other theories out there. Unparticle [...]
Fantastic news for physics lovers: pretty much all particle physics articles will now be open-source, thanks to a deal between a consortium and 12 journals. In the most remarkable attempt to make hard, peer-reviewed science available to readers, the Sponsoring Consortium for Open Access Publishing in Particle Physics (SCOAP3) is close to securing all particle-physics [...]
The Higgs boson or the God particle, as it’s also been commonly referred to, is a hypothetical particle that endows other elementary particles with mass. Confirming its existence is of crucial importance to physicists at the moment, otherwise scientists would be forced to rethink another method of imputing mass to particles. Last year, scientists at CERN registered a hint; [...]
The team operating the Antihydrogen Laser Physics Apparatus (ALPHA) at the CERN laboratory in Geneva, Switzerland reported storing antimatter for approximately 1000 seconds, which might not seem like much of a big deal, but it is about 10.000 times longer than the previous record ! A cloud of antihydrogen This study will hopefully reveal more [...]