Blog Profile / Symmetry Breaking

Filed Under:Academics / Physics
Posts on Regator:1054
Posts / Week:2.5
Archived Since:December 20, 2008

Blog Post Archive

LHCb discovers family of tetraquarks

Researchers found four new particles made of the same four building blocks. It’s quadruplets! Syracuse University researchers on the LHCb experiment confirmed the existence of a new four-quark particle and serendipitously discovered three of its siblings. Quarks are the solid scaffolding inside composite particles like protons and neutrons. Show More Summary

Preparing for their magnetic moment

Scientists are using a plastic robot and hair-thin pieces of metal to ready a magnet that will hunt for new physics. Three summers ago, a team of scientists and engineers on the Muon g-2 experiment moved a 52-foot-wide circular magnet 3200 miles over land and sea. Show More Summary

The Higgs-shaped elephant in the room

Higgs bosons should mass-produce bottom quarks. So why has no one seen this happen? Higgs bosons are born in a blob of pure concentrated energy and live only one-septillionth of a second before decaying into a cascade of other particles. Show More Summary

All four one and one for all

A theory of everything would unite the four forces of nature, but is such a thing possible? Over the centuries, physicists have made giant strides in understanding and predicting the physical world by connecting phenomena that look very...Show More Summary

Where does mass come from?

The Higgs field gives mass to elementary particles, but most of our mass comes from somewhere else. The story of particle mass starts right after the big bang. During the very first moments of the universe, almost all particles wereShow More Summary

Second gravitational wave detection announced

For a second time, scientists from the LIGO and Virgo collaborations saw gravitational waves from the merger of two black holes. Scientists from the LIGO and Virgo collaborations announced today the observation of gravitational waves...Show More Summary

The neutrino turns 60

Project Poltergeist led to the discovery of the ghostly particle. Sixty years later, scientists are confronted with more neutrino mysteries than ever before. In 1930, Wolfgang Pauli proposed the existence of a new tiny particle with no electric charge. Show More Summary

CERN grants beam time to students

Contest winners will study special relativity and an Egyptian pyramid using a CERN beamline. Two groups of high school teams have beat out nearly 150 others from around the world to secure a highly prized opportunity: the chance to do...Show More Summary

The neutrino cocktail

Neutrinos are a puzzling mixture of three flavors and three masses. Scientists want to measure it down to the last drop. For a neutrino, travel is truly life-changing. When one of the tiny particles ends its 500-mile journey from Fermilab’s...Show More Summary

What is a “particle”?

Quantum physics says everything is made of particles, but what does that actually mean? “Is he a dot or is he a speck? When he's underwater, does he get wet? Or does the water get him instead? Nobody knows.” —They Might Be Giants, “Particle...Show More Summary

1,000 meters below

Meet the world’s deepest underground physics facilities. A constant shower of energetic subatomic particles rains down on Earth’s surface. Born from cosmic ray interactions in the upper atmosphere, this invisible drizzle creates noisy background radiation that obscures the signatures of new particles or forces that scientists seek. Show More Summary

Low-mass particles that make high-mass stars go boom

Simulations are key to showing how neutrinos help stars go supernova. When some stars much more massive than the sun reach the end of their lives, they explode in a supernova, fusing lighter atoms into heavier ones and dispersing the products across space—some of which became part of our bodies. Show More Summary

Of bison and bosons

What are all of the symbols in Fermilab’s unofficial seal? When talking about Fermilab’s distinct visual and artistic aesthetic, it’s impossible not to mention Angela Gonzales. The artist – Fermilab’s 11th employee – joined the lab in 1967 and immediately began connecting the lab’s cutting-edge science with an artistic flair to match. Show More Summary

The Planck scale

The Planck scale sets the universe’s minimum limit, beyond which the laws of physics break. In the late 1890s, physicist Max Planck proposed a set of units to simplify the expression of physics laws. Using just five constants in nature...Show More Summary

Why do objects feel solid?

The way you think about atoms may not be quite right. A reader asks: "If atoms are mostly empty space, then why does anything feel solid?" James Beacham, a post-doctoral researcher with the ATLAS Experiment group of The Ohio State University,...Show More Summary

Mommy, Daddy, where does mass come from?

The Higgs field gives mass to elementary particles, but most of our mass comes from somewhere else. The story of particle mass starts right after the big bang. During the very first moments of the universe, almost all particles wereShow More Summary

LHC prepares to deliver six times the data

Experiments at the Large Hadron Collider are once again recording collisions at extraordinary energies. After months of winter hibernation, the Large Hadron Collider is once again smashing protons and taking data. The LHC will run around...Show More Summary

Following LIGO’s treasure maps

Astronomers around the world are looking for visible sources of gravitational waves. On the morning of September 16, 2015, an email appeared in 63 inboxes scattered around the globe. The message contained a map of the cosmos and some...Show More Summary

EXO-200 resumes its underground quest

The upgraded experiment aims to discover if neutrinos are their own antiparticles. Science is often about serendipity: being open to new results, looking for the unexpected. The dark side of serendipity is sheer bad luck, which is what...Show More Summary

A GUT feeling about physics

Scientists want to connect the fundamental forces of nature in one Grand Unified Theory. The 1970s were a heady time in particle physics. New accelerators in the United States and Europe turned up unexpected particles that theorists tried to explain, and theorists in turn predicted new particles for experiments to hunt. Show More Summary

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