Featured Research

from universities, journals, and other organizations

Largest Machines On Earth: Particle Colliders

Date:
February 27, 2005
Source:
Cornell University
Summary:
Two of the largest machines ever conceived by scientists are being reported by one of the world's leading experts on particle colliders, the massive and expensive machines used to explore inner space by smashing particles together at super-fast speeds.

Aerial view of the Large Hadron Collider (LHC) ring and tunnel.
Credit: Image courtesy of the European Centre for Nuclear Research (CERN)

WASHINGTON, D.C. (February 19, 2005) -- Two of the largest machines ever conceived by scientists will be described today by one of the world's leading experts on particle colliders, the massive and expensive machines used to explore inner space by smashing particles together at super-fast speeds.

Related Articles


Cornell University physicist Maury Tigner, director of Cornell's Laboratory for Elementary Particle Physics (LEPP) in Ithaca, N.Y., is playing a major role in two of these machines: the Large Hadron Collider (LHC), being built at the European Centre for Nuclear Research (CERN) in Geneva, for which he serves as chairman of the machine advisory committee, and the International Linear Collider (ILC), being planned by an international team, for which he is chairman of the steering committee.

Tigner describes the two machines today (Feb. 19) at the annual meeting of the American Association for the Advancement of Science (AAAS) in Washington, D.C., in a talk on "The Highest Energy Particle Colliders."

Tigner is well-known internationally as the first physicist to propose the idea for linear particle accelerators -- in 1965. He will open his talk by discussing the reasons for building such colossal and expensive machines to study the ultimate building blocks of all matter, and in particular to search for the Higgs boson, known as the God particle because of its postulated commanding role in explaining how subatomic particles interact with each other.

LHC is nearing completion in the 27-kilometer (17 miles) circumference tunnel originally created for CERN's Large Electron Positron collider. When completed in 2007, LHC will be the largest such device on Earth. It will slam protons (one type of hadron particle) together with an energy "seven times that of the largest such collider running now, the [the Fermi National Accelerator Laboratory] Tevatron, outside Chicago," says Tigner.

He also hopes the LHC will help scientists answer such questions as: Where does mass come from? What is the dark matter that permeates most of the universe? How many dimensions do we need to describe the physical world?

The ILC, a multibillion-dollar colossus that will require unprecedented international scientific cooperation, will be complimentary to CERN's LHC. The ILC actually would be two linear accelerators colliding electrons and positrons in a tunnel 40 kilometers (25 miles) long, 10 times as long as the current longest linear particle accelerator, the Stanford Linear Accelerator (SLAC).

"The advantage of a machine that collides electrons and positrons together is that, unlike protons, they are elementary particles, so you know exactly what the energy is in any reaction that you see," says Tigner. "Certain phenomena can only be seen with electron and position collisions. Thus ILC will make a good discovery machine."

He notes, "The main function of ILC is to quantify and pin down the identities and true nature of particles seen in both machines."

He adds that accelerators also are being used in areas of science beyond particle physics, from molecular biology to nanotechnology. "The work on accelerators in one field has synergy for work in other fields," says Tigner. As just one example, he cites the prototype for ILC that has been built by Deutsches Elektronen-Synchrotron (DESY) in Hamburg, a machine that also is being used as a free-electron laser making ultraviolet light for chemistry and condensed matter physics.


Story Source:

The above story is based on materials provided by Cornell University. Note: Materials may be edited for content and length.


Cite This Page:

Cornell University. "Largest Machines On Earth: Particle Colliders." ScienceDaily. ScienceDaily, 27 February 2005. <www.sciencedaily.com/releases/2005/02/050223140133.htm>.
Cornell University. (2005, February 27). Largest Machines On Earth: Particle Colliders. ScienceDaily. Retrieved October 25, 2014 from www.sciencedaily.com/releases/2005/02/050223140133.htm
Cornell University. "Largest Machines On Earth: Particle Colliders." ScienceDaily. www.sciencedaily.com/releases/2005/02/050223140133.htm (accessed October 25, 2014).

Share This



More Matter & Energy News

Saturday, October 25, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

IKEA Desk Converts From Standing to Sitting With One Button

IKEA Desk Converts From Standing to Sitting With One Button

Buzz60 (Oct. 24, 2014) IKEA is out with a new convertible desk that can convert from a sitting desk to a standing one with just the push of a button. Jen Markham explains. Video provided by Buzz60
Powered by NewsLook.com
Ebola Protective Suits Being Made in China

Ebola Protective Suits Being Made in China

AFP (Oct. 24, 2014) A factory in China is busy making Ebola protective suits for healthcare workers and others fighting the spread of the virus. Duration: 00:38 Video provided by AFP
Powered by NewsLook.com
Real-Life Transformer Robot Walks, Then Folds Into a Car

Real-Life Transformer Robot Walks, Then Folds Into a Car

Buzz60 (Oct. 24, 2014) Brave Robotics and Asratec teamed with original Transformers toy company Tomy to create a functional 5-foot-tall humanoid robot that can march and fold itself into a 3-foot-long sports car. Jen Markham has the story. Video provided by Buzz60
Powered by NewsLook.com
Police Testing New Gunfire Tracking Technology

Police Testing New Gunfire Tracking Technology

AP (Oct. 24, 2014) A California-based startup has designed new law enforcement technology that aims to automatically alert dispatch when an officer's gun is unholstered and fired. Two law enforcement agencies are currently testing the technology. (Oct. 24) Video provided by AP
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:

Strange & Offbeat Stories


Space & Time

Matter & Energy

Computers & Math

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins