Tag: particle physics

Can Dark Matter Be Explained By a Link to a Fifth Dimension?

The standard model of physics can’t accommodate some observed phenomena, notes Popular Mechanics. Yet “In a new study, scientists say they can explain dark matter by positing a particle that links to a fifth dimension.” While the “warped extra dimension” (WED) is a trademark of a popular physics model first introduced in 1999, this research, published in The European Physical Journal…

What does ‘luminosity’ mean in particle physics?

Even on the hottest and driest days, rays from the sun are too weak to ignite a fire. But with a magnifying glass (or, in some unfortunate cases, a glass garden ornament), you can focus sunlight into a beam bright enough to set tinder ablaze. …

A new look at the universe’s oldest light

New work agrees with older research suggesting the oldest light in the universe – from the most distant galaxy yet known – started its journey toward us 13.77 billion years ago. Source: https://earthsky.org/space/a-new-look-at-the-universes-oldest-light…

Researchers set new bounds on the mass of leptoquarks

At the most fundamental level, matter is made up of two types of particles: leptons, such as the electron, and quarks, which combine to form protons, neutrons and other composite particles. Under the Standard Model of particle physics, both leptons and quarks fall into three generations of increasing mass. Otherwise, the two kinds of particles are distinct. But some theories that…

The Search for Dark Matter Is Dramatically Expanding

Ever since astronomers reached a consensus in the 1980s that most of the mass in the universe is invisible — that “dark matter” must glue galaxies together and gravitationally sculpt the cosmos as a whole — experimentalists have hunted for the nonluminous particles. From a report: They first set out in pursuit of a heavy, sluggish form of dark matter called…

Searching for sub-eV sterile neutrinos using two highly sensitive detectors

The standard model of particle physics only accounts for 20% of matter in the universe. Physicists have theorized that the remaining 80% is made up by so-called dark matter, which consists of particles that do not emit, absorb or reflect light and thus cannot be directly observed using any existing instruments. …

For the First Time Scientists Detect Neutrinos Traced To CNO Cycle Inside the Sun

NBC News calls it “the ghostly signal that reveals the engine of the universe.” Long-time Slashdot reader fahrbot-bot shares their report: In research published Wednesday in the journal Nature, scientists reported that they’ve made the first detection of almost-ethereal particles called neutrinos that can be traced to carbon-nitrogen-oxygen fusion, known as the CNO cycle, inside the sun. It’s a landmark finding…

Scientists work to shed light on Standard Model of particle physics

As scientists await the highly anticipated initial results of the Muon g-2 experiment at the U.S. Department of Energy’s (DOE) Fermi National Accelerator Laboratory, collaborating scientists from DOE’s Argonne National Laboratory continue to employ and maintain the unique system that maps the magnetic field in the experiment with unprecedented precision. …

Applying particle physics methods to quantum computing

Borrowing a page from high-energy physics and astronomy textbooks, a team of physicists and computer scientists at the U.S. Department of Energy’s Lawrence Berkeley National Laboratory (Berkeley Lab) has successfully adapted and applied a common error-reduction technique to the field of quantum computing. …