An unforeseen feature in proton-proton collisions previously observed by the CMS experiment at CERN's Large Hadron Collider ...

But axions were pushed aside as the WIMPs hypothesis gained more steam. Back-of-the-envelope calculations showed that the natural mass range of the WIMP would precisely match the abundances needed to ...

Studying a new, very heavy particle helps us view underlying physical processes—often without annoying background noise. That makes it easy to explain the value of the discovery to the public ...

In truth, particle physics has always proceeded in two ways, of which new particles is one. The other is by making very precise measurements that test the predictions of theories and look for ...

Simulating data in particle physics is expensive and not perfectly accurate. To get around this, researchers are now ...

This article was originally published with the title “ The Dawn of Physics beyond the Standard Model ” in SA Special Editions Vol. 15 No. 3s (January 2006), p. 4 doi:10.1038 ...

The smallest pieces of the universe are governed by a beautiful and mind-blowing set of rules: the “Standard Model.” The Standard Model explains the ...

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In truth, particle physics has always proceeded in two ways, of which new particles are one. The other is by making very precise measurements that test the predictions of theories and look for ...

In a chilled lab where temperatures drop close to absolute zero, a speck of magnet hovers in place. This tiny magnet, ...

Another branch of physics—astrophysics—creates and tests theories about what’s happening across our vast universe. While particle physics and astrophysics appear to focus on opposite ends of a ...

Astrophysicists have seen evidence for tiny variations in the background of neutrinos left over from the Big Bang. Roberto Trotta of Oxford University and Alessandro Melchiorri at the University of ...