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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

Chris Henschke: HyperCollider

In 1905, Albert Einstein published his Special Theory of Relativity and overthrew the notions of absolute space and time. His later General Theory of Relativity was so revolutionary that even he had trouble accepting its full implications.

05/01/05

Virtual structure

As the newly-appointed Director of the Global Design Effort (GDE) for the proposed International Linear Collider (ILC), Barry Barish will lead teams of scientists worldwide in the research and development projects advancing the design of the next-generation discovery machine in high-energy physic

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

Soudan mural

This mural in the Soudan Underground Laboratory, located in Minnesota half a mile underground, was designed by artist Joseph Giannetti. Its theme is matter and energy, and--more specifically--neutrino physics.

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

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.

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

Einstein bear

In honor of the World Year of Physics, symmetry featured an Albert Einstein teddy bear on the cover of the February issue. Since then, we have received a steady stream of phone calls and email.

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