Giant superconducting ring takes a road trip
2013 07 04

By Jacob Aron | NewScientist

It looks like an alien spaceship about to take off on an intergalactic adventure. In reality this gargantuan object is a ring of superconducting magnets made by human hands, but its current journey is as bizarre as any a spacecraft might make.

The 15-metre-diameter ring was originally used at Brookhaven National Laboratory in New York to measure the magnetism of the muon, a subatomic particle that is essentially a heavier version of the electron. Now researchers at Fermilab in Batavia, Illinois, want to use it for a new experiment called Muon g-2. The only problem is moving it to its new home, about a third of the way across the US.


Read the full article at:

Muon g-2 Collaboration to Solve Mystery
Scientists from three Department of Energy national laboratories, Fermilab, Brookhaven and Argonne, along with scientists from seven foreign countries and more than a dozen U.S. universities are collaborating on a new physics experiment that will probe fundamental properties of matter and space. Muon g-2 (pronounced gee minus two) is an Intensity Frontier experiment that will allow researchers to peer into the subatomic world to search for undiscovered particles that may be hiding in the vacuum.

Soon to be built at Fermilab’s new Muon Campus, the experiment will use the Fermilab accelerator complex to produce an intense beam of muons traveling at nearly the speed of light. Scientists will use the beam to precisely determine the value of a property known as the g-2 of the muon.

The muon, like its lighter sibling the electron, acts like a spinning magnet. The parameter known as "g" indicates how strong the magnet is and the rate of its gyration. The value of g is slightly larger than 2, hence the name of the experiment. This difference from 2 is caused by the presence of virtual particles that appear from the vacuum and then quickly disappear into it again.

In measuring g-2 with high precision and comparing its value to the theoretical prediction, physicists will discover whether the experiment agrees with theory. Any deviation would point to as yet undiscovered subatomic particles that exist in nature.

An experiment that concluded in 2001 at Brookhaven National Laboratory found a tantalizing greater-than-3-sigma (standard deviation) discrepancy between the theoretical calculation and the measurement of the muon g-2. The level necessary for claiming a discovery is 5 sigma. Fermilab will pick up where Brookhaven left off, making an even more precise measurement.

With a four-fold increase in the measurement’s precision, Muon g-2 will be more sensitive to virtual or hidden particles and forces than any previous experiment of its kind. [...] Source

Related Articles
Muon g-2 : Fermilab

Latest News from our Front Page

Washed up Viking anchors leads to project digging up the ‘Spanish Vikings’
2014-12-19 23:29
The fearsome reputation of the Vikings has made them the subject of countless exhibitions, books and films – however, surprisingly little is known about their more southerly exploits in Spain. No comprehensive archaeological study of Viking sites in Spain has ever been carried out and now a University of Aberdeen researcher plans to dig up the ‘Spanish Vikings’ for the first ...
Pentagon launching missile defense blimps to patrol East Coast
2014-12-19 19:21
The US Army is set to begin testing its blimp-like surveillance airships, designed to help the military detect and destroy cruise missiles from attacking the nation’s capital and other East Coast cities. The blimps at the center of the tests in Maryland are unmanned, 80-yard long, helium-filled aircraft that can float up to 10,000 feet in the air. At that height ...
Sony Just Canned 'The Interview' in the Wake of Terrorist Threat
2014-12-19 18:31
Sony has cancelled the cinematic release of The Interview in the wake of its cyberattack after the five largest cinema chains in the country decided not​ to run the film. "Sony Pictures has been the victim of an unprecedented criminal assault against our employees, our customers, and our business," Sony wrote in its first statement on the matter, ​as reported ...
Sweden is so deranged, there are no words to describe it – Danish politician
2014-12-19 1:53
Politically correct Sweden is such a deranged society that there is no term in social science sufficient enough to describe it – argues Pia Kjærsgaard the Danish People’s Party former leader In this article in Den Korte Avis, Kjærsgaard marvels at the fact that the politically correct are so desperate that they have graduated from using worn-out epiteths such as neo-fascists, ...
U.N. sending thousands of Muslims to America
2014-12-19 0:44
The federal government is preparing for another “surge” in refugees and this time they won’t be coming illegally from Central America. The U.S. State Department announced this week that the first major contingent of Syrian refugees, 9,000 of them, have been hand-selected by the United Nations for resettlement into communities across the United States. The announcement came Tuesday on the State Department’s ...
More News »