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E.g., 09/20/2018
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Your search has returned 151 articles:
  • Feature

    Three new physics experiments could revamp the standard model

    Diana Parno’s head swam when she first stepped inside the enormous, metallic vessel of the experiment KATRIN. Within the house-sized, oblong structure, everything was symmetrical, clean and blindingly shiny, says Parno, a physicist at Carnegie Mellon University in Pittsburgh. “It was incredibly disorienting.”

    Now, electrons — thankfully immune to bouts of dizziness — traverse the inside...

    09/19/2018 - 09:30 Particle Physics
  • Science Ticker

    Early tests pave the way for a giant neutrino detector

    An enormous future particle detector is now within closer reach. The first data from a prototype experiment hint that scientists may have what it takes to build the planned neutrino detector.

    Known as the Deep Underground Neutrino Experiment, or DUNE, the experiment will use 70,000 metric tons of liquefied argon to study the secrets of these neutrinos — bizarre, nearly massless particles...

    09/18/2018 - 14:41 Particle Physics
  • News

    Electrons surf protons’ waves in a new kind of particle accelerator

    Particle accelerator technology has crested a new wave.

    For the first time, scientists have shown that electrons can gain energy by surfing waves kicked up by protons shot through plasma. In the future, the technique might help produce electron beams at higher energies than currently possible, in order to investigate the inner workings of subatomic particles.  

    Standard particle...

    08/29/2018 - 13:00 Particle Physics, Technology
  • News in Brief

    An elusive Higgs boson decay has finally been spotted

    The Higgs boson has been spotted bottoming out — but that’s a good thing.

    Physicists have detected the elementary particle decaying into two bottom quarks, exotic, short-lived particles that often appear in the aftermath of high-energy particle collisions. The elusive process was finally observed six years after the Higgs boson’s initial discovery, by physicists working at the Large...

    08/28/2018 - 15:05 Particle Physics
  • News

    Strange gamma rays from the sun may help decipher its magnetic fields

    The sleepy sun turns out to be a factory of extremely energetic light.

    Scientists have discovered that the sun puts out more of this light, called high-energy gamma rays, overall than predicted. But what’s really weird is that the rays with the highest energies appear when the star is supposed to be at its most sluggish, researchers report in an upcoming study in Physical Review Letters...

    08/24/2018 - 13:53 Astronomy, Particle Physics
  • News

    Ghostly antineutrinos could help ferret out nuclear tests

    Rogue nations that want to hide nuclear weapons tests may one day be thwarted by antineutrinos.

    Atomic blasts emit immense numbers of the lightweight subatomic particles, which can travel long distances through the Earth. In general, the particles — the antimatter twins of neutrinos — are notoriously difficult to spot. But a large antineutrino detector located within a few hundred...

    08/20/2018 - 07:00 Particle Physics, Technology
  • News

    A faint glow found between galaxies could be a beacon for dark matter

    Dim light emanating from the purgatory between galaxies could illuminate the most shadowy constituents of the cosmos.

    Dark matter, an unidentified type of particle that interacts gravitationally but otherwise shuns normal matter, lurks throughout clusters of galaxies. Because the elusive substance emits no light, it’s difficult to pin down how it is distributed, even though it makes up...

    08/10/2018 - 07:00 Astronomy, Particle Physics
  • Letters to the Editor

    Readers question dark fusion, Antarctic ice melting and more

    Melt away

    In the last five years, Antarctica has lost ice nearly three times faster on average than it did over the previous 20 years — largely due to climate change, Laurel Hamers reported in “Antarctica has lost about 3 trillion metric tons of ice since 1992” (SN: 7/7/18, p. 6).

    “Isn’t there a volcano or multiple volcanoes recently found under Antarctica that might also be...

    08/09/2018 - 07:00 Climate, Particle Physics, Microbiology
  • News in Brief

    Hopes dim that gamma rays can reveal dark matter

    An astronomical calling card, tentatively attributed to mysterious dark matter, seems likely to be due to a more mundane source.

    An unexplained glow of high-energy light from the center of the Milky Way, first spotted in 2009, raised scientists’ hopes of better pinning down dark matter (SN: 11/20/10, p. 11). That unidentified substance has been detected so far only via its gravitational...

    08/06/2018 - 11:00 Astronomy, Particle Physics
  • News in Brief

    In a first, physicists accelerate atoms in the Large Hadron Collider

    Not content with protons and atomic nuclei, physicists took a new kind of particle for a spin around the world’s most powerful particle accelerator.

    On July 25, the Large Hadron Collider, located at the laboratory CERN in Geneva, accelerated ionized lead atoms, each containing a single electron buddied up with a lead nucleus. Each lead atom normally has 82 electrons, but researchers...

    07/31/2018 - 13:42 Particle Physics