About a year ago, the DZero collaboration at Fermilab published a tantalizing result in which the universe unexpectedly showed a preference for matter over antimatter. Now the collaboration has more data, and the evidence for this effect has grown stronger. The result is extremely exciting: The question of why our universe should exist solely of [...]
Dr. Rosalyn Sussman Yalow, who passed away last month on May 30, was a mother, wife, educator, and dedicated medical physicist. She received the Nobel Prize in Medicine in 1977 while working for the Veterans Administration Hospital in New York for her contributions to the development of radioimmunoassays of peptide hormones. Today scientists utilize this technology to further diagnostics in the medical field for cancer research and Type II diabetes. 
As of this week, the Large Hadron Collider has delivered 1 inverse femtobarn of integrated luminosity to ATLAS and CMS, two of the four experimental stations housed along the ring. This means the detectors will have gathered data from about 70 trillion proton-proton collisions. For comparison, the experiments collected just 45 inverse picobarns in all of 2010; 1 inverse femtobarn is equal to one thousand inverse picobarns.
Recreating the conditions present just after the Big Bang has given experimentalists a glimpse into how the universe formed. Now, scientists have begun to see striking similarities between the properties of the early universe and a theory that aims to unite gravity with quantum mechanics, a long-standing goal for physicists.
The T2K experiment in Japan has observed six particle events that indicate the oscillation of muon neutrinos into electron neutrinos, a long-sought signal that allows scientists to better understand a phenomenon known as neutrino oscillations. For a long time scientists have suspected that the three known types of neutrinos can morph into each other. Several [...]