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Argonne cloud computing helps scientists run high energy physics experiments

DOE/Argonne National Laboratory
Peer-Reviewed Publication

A novel system is enabling high energy physicists at CERN in Switzerland to make production runs that integrate their existing pool of distributed computers with dynamic resources in "science clouds." The work was presented at the 17th annual conference on Computing in High Energy and Nuclear Physics, held in Prague, Czech Republic, March 21-27.

Funder: DOE/US Department of Energy, National Science Foundation
Meeting: 17th Annual Conference on Computing in High Energy and Nuclear Physics

New RFID technology tracks and monitors nuclear materials

DOE/Argonne National Laboratory
Peer-Reviewed Publication

Radio frequency identification devices have widely been used for tracking for years; recently, scientists from US Department of Energy's Argonne National Laboratory have developed a unique tracking technology that also monitors the environmental and physical conditions of containers of nuclear materials in storage and transportation.

Funder: DOE/US Department of Energy

Particle oddball surprises CDF physicists at Fermilab

DOE/Fermi National Accelerator Laboratory
Peer-Reviewed Publication

Scientists of the CDF experiment at the Department of Energy's Fermilab announced yesterday, March 17, that they have found evidence of an unexpected particle whose curious characteristics may reveal new ways that quarks can combine to form matter. The CDF physicists have called the particle Y(4140), reflecting its measured mass of 4140 Mega-electron volts. Physicists did not predict its existence because Y(4140) appears to flout nature's known rules for fitting quarks and antiquarks together.

Journal: Physical Review Letters
Funder: DOE/US Department of Energy, National Science Foundation

Argonne scientists discover new platinum catalysts for the dehydrogenation of propane

DOE/Argonne National Laboratory
Peer-Reviewed Publication

The process to turn propane into industrially necessary propylene has been expensive and environmentally unfriendly. That was until scientists at US Department of Energy's Argonne National Laboratory devised a greener way to take this important step in chemical catalysis.

Journal: Nature Materials
Funder: DOE/US Department of Energy

Fermilab experiments constrain Higgs mass

DOE/Fermi National Accelerator Laboratory
Peer-Reviewed Publication

The territory where the Higgs boson may be found continues to shrink. The latest data from the collider experiments at the US Department of Energy's Fermilab now exclude a significant fraction of the allowed Higgs mass range established by earlier measurements. Those experiments predict a Higgs mass between 114 and 185 GeV/c^2. The CDF and DZero results carve out a section in the middle of this range and exclude a mass between 160 and 170 GeV/c^2.

Funder: DOE/US Department of Energy, National Science Foundation, others
Meeting: Rencontres de Moriond

Argonne scientists reveal interaction between supersonic fuel spray and its shock wave

DOE/Argonne National Laboratory
Peer-Reviewed Publication

Shock waves are a well tested phenomenon on a large scale, but scientists at the US Department of Energy's Argonne National Laboratory and their collaborators from Wayne State University and Cornell University have made a breakthrough that reveals the interaction between shockwaves created by high-pressure supersonic fuel jets.

Journal: Physical Review Letters
Funder: DOE/US Department of Energy

Precision measurement of W boson mass portends stricter limits for Higgs particle

DOE/Fermi National Accelerator Laboratory
Peer-Reviewed Publication

Scientists of the DZero collaboration at the Department of Energy's Fermi National Accelerator Laboratory have achieved the world's most precise measurement of the mass of the W boson by a single experiment. Combined with other measurements, the reduced uncertainty of the W boson mass will lead to stricter bounds on the mass of the elusive Higgs boson.

Funder: DOE/US Department of Energy, National Science Foundation, international funding agencies
Meeting: Rencontres de Moriond

Fermilab collider experiments discover rare single top quark

DOE/Fermi National Accelerator Laboratory
Peer-Reviewed Publication

Scientists of the CDF and DZero collaborations at the Department of Energy's Fermi National Accelerator Laboratory have observed particle collisions that produce single top quarks. The discovery of the single top confirms important parameters of particle physics, including the total number of quarks, and has significance for the ongoing search for the Higgs particle at Fermilab's Tevatron, currently the world's most powerful operating particle accelerator.

Journal: Physical Review Letters
Funder: DOE/US Department of Energy, National Science Foundation

Argonne scientists pinpoint mechanism to increase magnetic response of ferromagnetic semiconductor

DOE/Argonne National Laboratory
Peer-Reviewed Publication

When squeezed, electrons increase their ability to move around. In compounds such as semiconductors and electrical insulators, such squeezing can dramatically change the electrical- and magnetic-properties. Now scientists at the US Department of Energy's Argonne National Laboratory have manipulated electron mobility and pinpointed the mechanism controlling the strength of magnetic interactions -- and hence the material's magnetic ordering temperature.

Journal: Physical Review Letters
Funder: DOE/US Department of Energy

Fermilab scientists speak on Project X, Higgs race and dark matter search at AAAS

DOE/Fermi National Accelerator Laboratory
Peer-Reviewed Publication

Scientists working at the Department of Energy’s Fermi National Accelerator Laboratory will present talks on plans for the proposed Project X accelerator at Fermilab; the latest Higgs search results from the Tevatron collider experiments; and an update on the search for dark matter using a bubble chamber. The talks will take place Feb. 12-16 in Chicago at the annual conference of the American Association for the Advancement of Science at the Hyatt Regency Hotel.

Meeting: 2009 AAAS Annual Meeting