Featured Research

from universities, journals, and other organizations

Large Hadron Collider throws lead

Date:
November 9, 2010
Source:
University of California - Davis
Summary:
The Large Hadron Collider at the European Organization for Nuclear Research (CERN) near Geneva, Switzerland, enters a new phase of operations Nov. 4. Scientists will stop running streams of protons through the machine and begin running lead atoms, stripped of their electrons, around the ring so that they smash into each other.

The Large Hadron Collider at the European Organization for Nuclear Research (CERN) near Geneva, Switzerland, enters a new phase of operations Nov. 4. Scientists will stop running streams of protons through the machine and begin running lead atoms, stripped of their electrons, around the ring so that they smash into each other.

Physicists from the Heavy Ion Group at the UC Davis physics department are part of the team for the lead ion experiments. The group includes Professors Daniel Cebra and Manuel Calderon de la Barca, postdoctoral scholar Sevil Salur and graduate student Jorge Robles. Salur and Robles are currently at CERN.

The record-setting energies available for heavy ion collisions at the Hadron collider will yield large numbers of rare and heavy particles, Cebra said. Those particles will be used to study quark-gluon plasma, which is what the universe was made of in the first instants after the big bang. Study of the particles will also help scientists understand how the plasma evolved into the kind of matter the universe is made of today.

By measuring the tracks of the different particles produced in the quark-gluon plasma, the researchers will be able to learn about the plasma's properties and about the fundamental forces acting on the particles that travel through it, Cebra said.

The Large Hadron Collider is being used by physicists to study the fundamental building blocks of nature. Experiments to date have already charted new territory, according to CERN. Advances so far include validation of aspects of the Standard Model of particles and forces at these new high energies; observations of the "top quark," a particle whose existence was first confirmed at FermiLab in Batavia, Ill.; and limits set on the production of certain new particles, for example "excited" quarks.

Thousands of physicists from around the world, including many from UC Davis, are working on the vast project in teams. The UC Davis Heavy Ion Group is working on muon triggers, highly sensitive detectors that will record the presence of pairs of positive and negative muon particles that form from the decay of other particles.

The collider will use lead ions until Dec. 6, when operations will pause for maintenance. Operation of the collider will start again in February, and physics experiments will continue through 2011.


Story Source:

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


Cite This Page:

University of California - Davis. "Large Hadron Collider throws lead." ScienceDaily. ScienceDaily, 9 November 2010. <www.sciencedaily.com/releases/2010/11/101104111112.htm>.
University of California - Davis. (2010, November 9). Large Hadron Collider throws lead. ScienceDaily. Retrieved July 26, 2014 from www.sciencedaily.com/releases/2010/11/101104111112.htm
University of California - Davis. "Large Hadron Collider throws lead." ScienceDaily. www.sciencedaily.com/releases/2010/11/101104111112.htm (accessed July 26, 2014).

Share This




More Matter & Energy News

Saturday, July 26, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Europe's Highest Train Turns 80 in French Pyrenees

Europe's Highest Train Turns 80 in French Pyrenees

AFP (July 25, 2014) Europe's highest train, the little train of Artouste in the French Pyrenees, celebrates its 80th birthday. Duration: 01:05 Video provided by AFP
Powered by NewsLook.com
TSA Administrator on Politics and Flight Bans

TSA Administrator on Politics and Flight Bans

AP (July 24, 2014) TSA administrator, John Pistole's took part in the Aspen Security Forum 2014, where he answered questions on lifting of the ban on flights into Israel's Tel Aviv airport and whether politics played a role in lifting the ban. (July 24) Video provided by AP
Powered by NewsLook.com
Creative Makeovers for Ugly Cellphone Towers

Creative Makeovers for Ugly Cellphone Towers

AP (July 24, 2014) Mobile phone companies and communities across the country are going to new lengths to disguise those unsightly cellphone towers. From a church bell tower to a flagpole, even a pencil, some towers are trying to make a point. (July 24) Video provided by AP
Powered by NewsLook.com
Algonquin Power Goes Activist on Its Target Gas Natural

Algonquin Power Goes Activist on Its Target Gas Natural

TheStreet (July 23, 2014) When The Deal's Amanda Levin exclusively reported that Gas Natural had been talking to potential suitors, the Ohio company responded with a flat denial, claiming its board had not talked to anyone about a possible sale. Lo and behold, Canadian utility Algonquin Power and Utilities not only had approached the company, but it did it three times. Its last offer was for $13 per share as Gas Natural's was trading at a 60-day moving average of about $12.50 per share. Now Algonquin, which has a 4.9% stake in Gas Natural, has taken its case to shareholders, calling on them to back its proposals or, possibly, a change in the target's board. Video provided by TheStreet
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:
from the past week

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