Physicists at CERN rob hydrogen atoms of their protons, compact them into bunches and inject them into the series of four accelerator rings. Each ring in the sequence amplifies the energy of the protons and guides the subatomic particles with powerful magnets. Finally, two proton beams are flung in opposite directions at nearly the speed of light and smashed together at one of four detectors. Then the sparks fly. Credit: Justin Eure/MEDILL
Outside the small village of Meyrin, Switzerland, horses graze quietly in fields lined by the Jura mountains. You'd never know it by the idyllic landscape, but 300 feet below the Swiss-French border, the Large Hadron Collider is searching for the secrets of the universe. A 17-mile circular tunnel houses the world’s largest atom smasher that is once again firing high-energy proton beams.
On Monday, the CERN Control Center turned on the LHC beams to begin the next two-year run of the particle collider. CERN directors decided to extend the run through the end of 2012, instead of shutting down in 2011 for repairs as previously planned, and spirits are running high among scientists working in the field of new physics.
Researchers from across the world engineer detectors and seek to solve the mysteries of matter in an international collaboration that reaches from Chicago to Mumbai.
“Recently there was a convention in Chamonix,” said Georgios Choudalakis, a Greek physicist on the ATLAS experiment at the LHC. “The heads of the experiments and the director of the laboratory decided that we will take data for 2 years. And the decisive criterion for this was the sensitivity to the Higgs, so we’re optimistic.”
The search is on for the Higgs! The international team of scientists at CERN recalls the bumpy history of the Large Hadron Collider, from disastrous delays to recent results that are exceeding expectations. The physicists anticipate breakthroughs in the next two years that will change our fundamental understanding of the universe. Video credit: Chelsea Whyte and Justin Eure/MEDILL.
This comes on the heels of the news that 2011 will be the end of the run for the Tevatron, the second most powerful particle collider in the world located at the Fermi National Laboratory in Batavia. After setbacks and shutdowns, the LHC had collisions in 2010 that went even better than expected. “We made it clear even to ourselves that the page has turned,” said Choudalakis. “The energy frontier is not at the Tevatron anymore. We are cutting more ice here.”
Now, the hunt for the Higgs is on at CERN, the Conseil Européen pour la Recherche Nucléaire.
The elusive Higgs particle is, according to the theory, a fundamental building block of matter and the reason everything has mass.
“Nobody can explain where mass comes from, but we know it’s there,” said Pauline Gagnon, a French physicist at the ATLAS experiment. This conundrum is the most important question physicists have to answer, she said.
“If you think of a one pound bag of salt and you add up the weights of each grain of salt, they will logically equal one pound,” said Gagnon. But, when physicists break down atoms in this way and try to determine the weight of the pieces inside, the calculations of the weight of atomic building blocks such as quarks and electrons don’t add up, she said. Here’s where the Higgs comes in.
Outside the small village of Meyrin, Switzerland, horses graze quietly in fields lined by the Jura mountains. You'd never know it by the idyllic landscape, but 300 feet below the Swiss-French border, the Large Hadron Collider is searching for the secrets of the universe. A 17-mile circular tunnel houses the world’s largest atom smasher that is once again firing high-energy proton beams.
On Monday, the CERN Control Center turned on the LHC beams to begin the next two-year run of the particle collider. CERN directors decided to extend the run through the end of 2012, instead of shutting down in 2011 for repairs as previously planned, and spirits are running high among scientists working in the field of new physics.
Researchers from across the world engineer detectors and seek to solve the mysteries of matter in an international collaboration that reaches from Chicago to Mumbai.
“Recently there was a convention in Chamonix,” said Georgios Choudalakis, a Greek physicist on the ATLAS experiment at the LHC. “The heads of the experiments and the director of the laboratory decided that we will take data for 2 years. And the decisive criterion for this was the sensitivity to the Higgs, so we’re optimistic.”
The search is on for the Higgs! The international team of scientists at CERN recalls the bumpy history of the Large Hadron Collider, from disastrous delays to recent results that are exceeding expectations. The physicists anticipate breakthroughs in the next two years that will change our fundamental understanding of the universe. Video credit: Chelsea Whyte and Justin Eure/MEDILL.
This comes on the heels of the news that 2011 will be the end of the run for the Tevatron, the second most powerful particle collider in the world located at the Fermi National Laboratory in Batavia. After setbacks and shutdowns, the LHC had collisions in 2010 that went even better than expected. “We made it clear even to ourselves that the page has turned,” said Choudalakis. “The energy frontier is not at the Tevatron anymore. We are cutting more ice here.”
Now, the hunt for the Higgs is on at CERN, the Conseil Européen pour la Recherche Nucléaire.
The elusive Higgs particle is, according to the theory, a fundamental building block of matter and the reason everything has mass.
“Nobody can explain where mass comes from, but we know it’s there,” said Pauline Gagnon, a French physicist at the ATLAS experiment. This conundrum is the most important question physicists have to answer, she said.
“If you think of a one pound bag of salt and you add up the weights of each grain of salt, they will logically equal one pound,” said Gagnon. But, when physicists break down atoms in this way and try to determine the weight of the pieces inside, the calculations of the weight of atomic building blocks such as quarks and electrons don’t add up, she said. Here’s where the Higgs comes in.