12 matter particles suffice in nature

How many matter particles exist in nature? Particle physicists have been dealing with this question for a long time. The 12 matter particles contained in the standard model of particle physics? Or are there further particles ...

Precision measurements using top quarks at CMS

Amongst all known elementary particles, the top quark is peculiar: weighing as much as a Tungsten atom, it completes the so-called 3rd generation of quarks and is the only quark whose properties can be directly measured. ...

Major US atom-smasher closes after 25 years (Update)

A powerful US atom-smasher that was the world's biggest particle collider for nearly a quarter-century closed forever on Friday, solidifying Europe's place as the world leader in physics.

Physicists closing in on the elusive Higgs boson

Scientists at a meeting in Grenoble, France, recently stoked speculation that physicists at the world's biggest particle accelerator may soon provide a first look at the elusive Higgs boson - the final piece of evidence needed ...

Fermilab collider experiments discover rare single top quark

(PhysOrg.com) -- Scientists of the CDF and DZero collaborations at the Department of Energy's Fermi National Accelerator Laboratory have observed particle collisions that produce single top quarks. The discovery of the single ...

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