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Narrowing In on the W Boson Mass
Scientists working on the ATLAS experiment at the Large Hadron Collider - the world's largest particle collider - have precisely measured the mass of the W boson, a particle that plays a weighty role in a delicate balancing act of the quantum universe. Berkeley Lab is part of the ATLAS collaboration. More>
From Belgrade to Berkeley: A Postdocā€™s Path in Particle Physics
After completing her Ph.D. thesis in calculating the mass of the W boson - an elementary particle that mediates one of the universe's fundamental forces -physics researcher Aleksandra Dimitrievska is now testing components at Berkeley Lab for a scheduled upgrade of the world's largest particle detectors. More>
The Life of a Lens: Chronicling the Creation of a Single Lens for DESI
This video chronicles the many steps it took to create a single lens for the Dark Energy Spectroscopic Instrument (DESI). The lens made stops in Japan, England, and the U.S. (including a couple of layovers at the Lab), before ending its journey at the Kitt Peak Observatory in Arizona. DESI will measure the effect of dark energy on the expansion of the universe.
Solving the Dark Energy Mystery: A New Assignment for an Old Telescope
The dome has closed on the previous science chapters of the 4-meter Mayall Telescope in Arizona so that it can prepare for its new role in creating the largest 3-D map of the universe. This map could help to solve the mystery of dark energy, which is driving the accelerating expansion of the universe. More>
The Big Bang May Have Been One of Many
In recent years, a growing number of cosmologists - including the Lab's Surjeet Rajendran - have revisited an alternative to the Big Bang theory for the origin of the universe. According to a recent article in The Atlantic, these scientists think the Big Bang might instead have been a Big Bounce, in which time continues into the past and future without end. More>
Thermonuclear Plasmas Topic of Next Instrumentation Colloquium
Robin Benedetti of Lawrence Livermore National Lab will speak on "Observing Thermonuclear Plasmas at the National Ignition Facility" on Wednesday, Jan. 31, from noon to 1p.m. in the Building 50 Auditorium. More>
How Dark Matter Physicists Score Deals on Liquid Xenon
About 20 percent of the $70 million budget needed to build and run a dark matter detector is used just for xenon gas. Physicists working on the LUX-ZEPLIN project discovered this in 2015, when developing their budget. "We don't get a break because we're poor, starving scientists," says Murdock Gilchriese of the 250-member experiment led by Berkeley Lab. More>
Dark Energy Survey (DES) Publicly Releases First Three Years of Data
This first major release of data from the survey includes information on about 400 million astronomical objects, including distant galaxies billions of light-years away as well as stars in our own galaxy. DES scientists are using this data to learn more about dark energy. Berkeley Lab is a DES collaborator. More>