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New results from the CMS experiment put W boson mass mystery to rest

09/17/24

Physicists on the CMS experiment announce the most elaborate mass measurement of a particle that has captivated the physics community for decades.

05/01/05

The decade of the neutrino

Speaking experimentally, the past decade has been the "Decade of the Neutrino." It produced neutrino experiments across three continents, going from the lab, to the nuclear reactor, to the atmosphere, to the sun, and back to the nuclear reactor.

05/01/05

Frolicking bison

As spring arrived, so did the kids. Their knees wobbly and eyes wide open, they stayed close to their moms. Dad, weighing more than 2500 pounds, made sure that no harm came the babies' way.

05/01/05

Neutrino mixing

Waves describe some of the most extraordinary phenomena in the world. Waves can be simple—the sound of a flute playing a sustained, single note—or they can be complicated mixtures—a musical chord, for example, which is a combination of many sound waves.

05/01/05

Breathing accelerator

As the sun rises each day, warming the grounds and buildings of the Stanford Linear Accelerator Center, the entire SPEAR3 synchrotron facility expands in response.

05/01/05

The elusive neutrino

Not only are neutrinos hard to catch, but they also change form as they travel through space. New experiments hope to understand their chameleonic nature.

05/01/05

Searching for the neutrino's identity

Neutrinos are like no other particle in the universe. The more we learn about these "little neutral ones," the less we seem to understand them. Physicists do not even yet know what type of particle the neutrino is.

04/01/05

Distant quasar

On the night of April 27, 2002, the Apache Point 3.5 m telescope in New Mexico captured the light signature of SDSS 1148+5251, the most distant quasar known. A quasar is a compact, ultraluminous object thought to be powered by material falling into a giant black hole.

04/01/05

What's in the box?

In January 2000, Tom Jordan had just finished up a conference in San Diego, where he had presented one of the new cosmic ray detectors to QuarkNet teachers.

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