Mystery particle may explain extreme X-rays shooting from the ‘Magnificent 7’ stars

More than 400 light-years from Earth, there is a cluster of young neutron stars that are too hot for their age. These stars, known as the “Magnificent Seven,” emit a stream of ultra-high-energy X-rays that scientists haven’t been able to explain.  Now, scientists have proposed a possible culprit: axions, theoretical particles that turn into light […]

Study: X-Rays surrounding ‘Magnificent 7’ may be traces of sought-after particle

IMAGE: An artistic rendering of the XMM-Newton (X-ray multi-mirror mission) space telescope. A study of archival data from the XMM-Newton and the Chandra X-ray space telescopes found evidence of high levels… view more  Credit: D. Ducros; ESA/XMM-Newton, CC BY-SA 3.0 IGO A new study, led by a theoretical physicist at the U.S. Department of Energy’s Lawrence […]

Machine learning improves particle accelerator diagnostics

The Continuous Electron Beam Accelerator Facility, a DOE User Facility, features a unique particle accelerator that nuclear physicists use to explore the heart of matter. Credit: DOE’s Jefferson Lab Operators of the primary particle accelerator at the U.S. Department of Energy’s Thomas Jefferson National Accelerator Facility are getting a new tool to help them quickly […]

A portable particle detector can determine aerosol concentrations in public spaces — ScienceDaily

Because of the role they play in coronavirus transmission, understanding aerosol concentrations and persistence in public spaces can help determine infection risks. However, measuring these concentrations is difficult, requiring specialized personnel and equipment. That is, until now. Researchers from the Cardiology Centers of the Netherlands and the University of Amsterdam demonstrate that a commercial hand-held […]

Comparing Impacts of CO2 and Particle Emission Reductions

Black carbon contained in airborne particles is often cited as a major factor warming the climate. Kumar et al. [2020] evaluate the temperature and climate forcing changes associated with modified airborne particulate matter concentrations driven by reductions in California greenhouse gas emissions. Although the adoption of low-carbon energy sources improved surface-level air quality […]

Scientists work to shed light on Standard Model of particle physics

Typical magnetic field variations as mapped by the trolley at different positions in the Muon g-2 experiment’s storage ring, shown at the parts-per-million level. Credit: Argonne National Laboratory. 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 […]

Applying particle physics methods to quantum computing — ScienceDaily

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. In the world of subatomic particles and giant particle detectors, and distant […]

Black holes could become massive particle accelerators

Black holes are powerful engines of pure gravity, capable of pulling on objects so intensely that they can’t possibly escape.  When those objects near the event horizon, they’re accelerated to incredible velocities. Now, some physicists are suggesting harnessing the gravitational pull of black holes to create ferocious particle accelerators. The trick, the new study finds, […]

Researchers capture elusive particle trios at room temperature

Researchers have found a way to trap and study elusive particle trios called trions at room temperature.  Previously, trions could be studied only in super-cooled conditions. These trios consist of either two electrons and an electron hole (a space in the electronic structure that an electron could fill, but where there is no electron), or […]