A new paper asks: What if antimatter is the portal into the dark universe? <meta property=
If axions influence antimatter's behavior, the effects are tiny.
The secrets of dark matter could possibly be explained by antimatter particles - doppelgangers of matter particles that have the opposite electric charge.
The secrets of dark matter could possibly be explained by antimatter particles - doppelgangers of matter particles that have the opposite electric charge.
A hypothetical particle called the axion could solve one of physics' great mysteries: the excess of matter over antimatter, or why we're here at all.
When our universe was born, the meeting of matter and antimatter should have annihilated each other. That means that nothing—no Earth, no sun, no galaxies, no humans—would exist. But we do.
An experiment that exploits the same underlying physics as medical scanners could help detect a super-elusive dark matter candidate, the axion
The Baryon Antibaryon Symmetry Experiment (BASE) at CERN's Antimatter Factory has set new limits on the existence of axion-like particles, and how easily those in a narrow mass range around 2.97 neV could turn into photons, the particles of light. BASE's new result, published by Physical Review Letters, describes this pioneering method and opens up new experimental possibilities in the search for cold dark matter.
The Baryon Antibaryon Symmetry Experiment (BASE) at CERN's Antimatter Factory has set new limits on the existence of axion-like particles, and how easily those in a narrow mass range around 2.97 neV could turn into photons, the particles of light. BASE's new result, published by Physical Review Letters, describes this pioneering method and opens up new experimental possibilities in the search for cold dark matter.
Researchers have discovered a new avenue to search for axions--a hypothetical particle that is one of the candidates of dark matter particles. The group, which usually performs ultra-high precision measurements of the fundamental properties of trapped antimatter, has for the first time used the ultra-sensitive superconducting single antiproton detection system of their advanced Penning trap experiment as a sensitive dark matter antenna.
Supercomputer calculation suggests hypothesized particle may be heavier than thought.
A quick take on space science.
THE DARK matter which composes up to 99 per cent of the mass of the Universe may already have been 'seen' by astrophysicists. Its 'signature' may be the ex
A particle detector attached to the International Space Station may have just discovered the first proof of the existence of dark matter in space, in the form of excess positrons.
We may be on the verge of solving one of the universe's greatest mysteries
Could the profound mysteries of antimatter and dark matter be linked? Thinking that they might be, scientists from the international BASE collaboration, led by Stefan Ulmer of the RIKEN Cluster for Pioneering Research, and collaborators have performed the first laboratory experiments to determine whether a slightly different way in which matter and antimatter interact with dark matter might be a key to solving both mysteries.
A $2 billion device attached to the outside of the International Space Station has found particles that could be the building blocks of dark matter.
Two nearby powerful pulsars aren’t responsible for the stream of antimatter positrons snaking past Earth, so dark matter might be behind it after all
Using new data from the High-Altitude Water Cherenkov (HAWC) Gamma-Ray Observatory in Mexico, researchers have ruled out two nearby pulsars as the sources of a mysterious excess of anti-matter particles coming to the Earth.
From aboard the International Space Station, the Alpha Magnetic Spectrometer has seen what may be our first glimpse of dark matter
The first science results from the space station-based Alpha Magnetic Spectrometer are expected soon, and may or may not indicate a detection of dark matter annihilation.
<p><strong>Stuart Clark: </strong>New observations from experiment on space station confirm a strange antimatter signal but take us no closer to an explanation</p>
Big news in the search for dark matter may be coming in about two weeks, the leader of a space-based particle physics experiment said Sunday at the annual meeting of the American Association for the Advancement of Science.
Scientists at the Large Hadron Collider say they are getting some clues about where all the anti-matter went.
Samuel Ting’s Alpha Magnetic Spectrometer data gives hints but no conclusive proof of dark matter, the next big mystery in physics.
The $2 billion Alpha Magnetic Spectrometer, aboard space station, may have caught whiff of dark matter
A new study of dark matter casts doubt on a previous finding that offered hope that dark matter had finally been seen
A massive particle detector mounted on the International Space Station may have detected elusive dark matter at last, scientists announced today (April 3).
The finding could be a milestone in the decades-long search for the universe's missing material. But some scientists urge caution, saying it's possible the particles seen by the sensor on the International Space Station could have come from somewhere else.
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A new experiment at a Swiss physics laboratory has, for the first time, successfully produced a stream of antimatter hydrogen atoms that could help answer a fundamental physics question.
Antimatter, an elusive type of matter that's rare in the universe, has now been trapped for more than 16 minutes — an eternity in particle physics.
Physicists have succeeded for the first time in trapping atoms of anti-matter hydrogen, or antihydrogen. The feat takes researchers one step closer to seeing how antihydrogen might differ from normal hydrogen.
Researchers with ALPHA, an international collaboration based at the European Organization for Nuclear Research (CERN) in Geneva, Switzerland, claim to have made the first ever measurement of ...
AT the last count, the periodic table contained 111 chemical elements. Its shadowy antimatter counterpart contains just one, now that physicists from Germa
Scientists have taken the first-ever measurement of an atom made of antimatter.
Article
Antimatter, an elusive type of matter that's rare in the universe, has now been trapped for more than 16 minutes — an eternity in particle physics.
In an effort to understand how antimatter works, physicists conducted a study to see how it interacts with gravity
Antimatter may react to gravity in the opposite way that normal matter does--by "falling up" instead of down—trouble is, it's difficult to capture and keep antiparticles for study.
The big physics-y news story of the moment is the trapping of antihydrogen by the ALPHA collaboration at CERN. The article itself is paywalled, because this is Nature, but one of the press offices at one of the institutions involved was kind enough to send me an advance version of the article. This seems like…
Last week a team of physicists based at CERN announced that they had coaxed a handful of elusive antihydrogen atoms into existence: 38 of them, to be exact. Simply creating antimatter is no longer newsworthy; a competing team fabricated tens of thousands of antihydrogen atoms using a different method back in 2002. What’s new about […]
Physicists weighed antihydrogen atoms in an attempt to understand whether gravity pulls antimatter, the strange cousin of normal matter, up or down.
Scientists make an antimatter atom of hydrogen and study its spectrum for the first time.
(Phys.org)—There are many experiments that physicists would like to perform on antimatter, from studying its properties with spectroscopic measurements to testing how it interacts with gravity. But in order to perform these experiments, scientists first need some antimatter. Of course, they won't be finding any in nature (due to antimatter's tendency to annihilate in a burst of energy when it comes in contact with ordinary matter), and creating it in the lab has proven to be very technically c
The apparent discovery of the Higgs boson was hailed as a historic milestone, but for particle physicists it mainly marks the beginning of a new search. Rival teams at CERN in Switzerland are trying to decipher the secrets of antimatter. If they succeed, the laws of physics will have to be rewritten.
Theory and observations support the view that antimatter experiences gravity just as ordinary matter does, but the evidence so far has been indirect. Indeed, some theorists speculate that antimatter is antigravitational, that it may fall
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In the shadow of the Large Hadron Collider, six teams are competing to answer one of the universe’s deepest existential questions
Lawrence Berkeley National Laboratory physicists are key members of the international ALPHA Collaboration at CERN in Geneva, which has succeeded in storing a total of 309 antihydrogen atoms, some for as long as 1,000 seconds (almost 17 minutes) or even longer -- more than enough time to perform meaningful scientific experiments on confined anti-atoms.
CERN scientists were able to compare the light spectrums of matter and antimatter by blasting anti-hydrogen atoms with laser. How did the result fare with predictions of the Standard Model of particle physics?
Alok Jha: Cern's capture of antihydrogen will increase our understanding of antimatter – and possibly provide a future source of fuel
The ALPHA collaboration at CERN in Geneva has scored another coup on the antimatter front by performing the first-ever spectroscopic measurements of the internal state of the antihydrogen atom. Their results are reported in a forthcoming issue of Nature and are now online.Ordinary hydrogen atoms are the most plentiful in the universe, and also the simplest – so simple, in fact, that some of the most fundamental physical constants have been discovered by measuring the tiny energy shifts resu...
The ASACUSA experiment at CERN has succeeded for the first time in producing a beam of antihydrogen atoms.
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Scientists at Cern have found a new way to unlock the secrets of antimatter.
In a study published in the journal Nature Physics, researchers report trapping some 300 antihydrogen atoms for a record 16 minutes, a stunning technical feat that promises deeper insights into the mysteries of antimatter.
Putting Einstein's special relativity to the test.
Scientists have just managed to make the first ever measurement of the optical spectrum of an antimatter atom. This achievement by the ALPHA collaboration opens a completely new era in high-precision antimatter research.
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A new paper asks: What if antimatter is the portal into the dark universe? <meta property=
Fermi scientists reveal new details about high-energy particles implicated in a nearby cosmic mystery.
Collisions of atomic and subatomic particles at very high energies reveal important properties about the beginning of the Universe and the atomic forces, and how fundamental particles are formed and react with each other. Adam Bzdak from the RIKEN BNL Research Center and colleague Vladimir Skokov from Brookhaven National Laboratory in the US have now proposed a scheme that allows for a better understanding of how light and subatomic particles react with each other during such high-energy collisi
The universe is filled with so much more matter than antimatter. The LEGEND experiment, photographed by Enrico Sacchetti, will soon start trying to unravel this conundrum
Do signals from beneath an Italian mountain herald a revolution in physics?
In the search for new forces and interactions beyond the Standard Model, an international team of researchers involving the PRISMA Cluster of Excellence at Johannes Gutenberg University Mainz (JGU) and the Helmholtz Institute Mainz has now taken a good step forward. The researchers, among them Prof. Dr. Dmitry Budker, are using an amplification technique based on nuclear magnetic resonance.
For almost 30 years, the hunt has been on for a ghostly particle proposed to plug a gap in the standard model of particle physics. The detection of a tiny optical effect might be the first positive sighting.
A claim that neutrinos traveled faster than the speed of light would be revolutionary if true, but "I would bet against it," physicist says.
What to consider when buying an air purifier, including pollutant concerns, along with our best picks for air purifiers.
Physicists have devised a theory that unifies two widely studied mysteries of the universe: why there is an imbalance between regular matter and anti-matter (scientists expect to see equal amounts of each, but observe less anti-matter), and the identity of “dark matter” – the enigmatic particles thought to account for the extra gravitational pull observed in distant galaxies.
For the first time, a new kind of so-called Klein tunnelling-representing the quantum equivalent of crossing an energy wall- has been presented in a model of two interacting particles. This work by Stefano Longhi and Giuseppe Della Valle from the Institute of Photonics and Nanotechnology in Milan, Italy, is about to be published in EPJ B.
Hearts were warmed, and people were helped.
The LHC, operating at unprecedented luminosities, has revealed a system of five
Ad Support : Nano Technology Netbook Technology News Computer Software The Princeton University scientists and others in the Borexino Collaboration have detected geoneutrinos at the Gran Sasso National Laboratory of the Italian Institute of Nuclear Physics. The discovery could explain how reactions taking place in the planet's deep interior affect events on the surface. This stainless steel sphere is part of the neutrino detector used in the project, located nearly a mile below the surface
The U.S. should build a billion-dollar project to beam ghostlike subatomic particles 800 miles (1,300 kilometers) underground west from Chicago to the high plains state of South Dakota, a committee of experts told the federal government Thursday.
Most of the matter in the universe is undetectable in any way except for the gravity it exerts. While some think this mysterious “dark matter” must be made up of unknown particles, others suggest a familiar particle could be the key. <meta property=
The weak nuclear force is currently not entirely understood, despite being one of the four fundamental forces of nature. In a pair of Physical Review Letters articles, a multi-institutional team, including theorists and experimentalists from Louisiana State University, Lawrence Livermore National Laboratory, Argonne National Laboratory and other institutions worked closely together to test physics beyond the "Standard Model" through high-precision measurements of nuclear beta decay.
Researchers at the SLAC National Accelerator Laboratory are set to test an experiment that mimics what happens when incredibly energetic particles hit our atmosphere. In a SLAC test facility, scientists have set the stage for an experiment that mimics what happens when incredibly energetic partic
You’re almost unfathomably lucky to exist, in almost every conceivable way. Don’t take it the wrong way. You, me, and even the most calming manatee are...
To him who waits
Most of the matter in the universe may be made out of particles that possess an unusual, donut-shaped electromagnetic field called an anapole.
Riding in a car through space, if you were to hang your white-gloved hand out the window, it would come back dirty. The space between the Milky Way's stars is filled with gas and dust—lots of dust. This summer, the European Space Agency's Planck satellite produced a high-resolution dust map. The ultimate goal of the project is to map the cosmic microwave background, the electromagnetic leftovers of the universe's violent beginning.
Particles change flavors en route from the sun
A new analysis of W bosons suggests these particles are significantly heavier than predicted by the standard model of particle physics.
Hold out your hand: Look closely. If you're outside on a sunny day, you might see dust motes and pollen dance in the air, perhaps landing on your skin, and bright rays of sunlight peek between your fingers. To the naked eye, your skin provides a barrier between your body and these exterior elements. The light refracts around your palm, not through it.
Researchers at CERN are beginning to generate very high energy neutrinos and capture their behavior when they interact. This will help astronomers studying exotic astronomical phenomena.
The European Research Council gives an ERC Starting Grant to Christian Smorra to develop and perform symmetry experiments with portable antiprotons and measure the fundamental properties of antiprotons with high precision.
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A newly discovered dwarf galaxy orbiting our own Milky Way has offered up a surprise -- it appears to be radiating gamma rays, according to an analysis by physicists at Carnegie Mellon, Brown, and Cambridge universities. The exact source of this high-energy light is uncertain at this point, but it just might be a signal of dark matter lurking at the galaxy's center.
The debate over the wave or particle-like nature of light consumed physicists for 300 years after Isaac Newton championed particles and Christian Huygens backed the idea of waves. The resolution, that light can be thought of as both a wave and a particle, would have astounded these giants of physics, as indeed, it does us.…
Five Years Ago This week in 2016, we looked at the recent emergence of the new "value gap" rhetoric" in music industry complaints about tech, while Kickass Torrents was trying to get the Justice Department to drop charges against it, and Ed Sheeran was facing lawsuits for songs that were merely inspired by older songs.…
Researchers at the National Institute of Standards and Technology (NIST) and their colleagues have proposed a novel method for finding dark matter, the cosmos' mystery material that has eluded detection for decades.
The eight scientists from the Johns Hopkins Henry A. Rowland Department of Physics and Astronomy had already started making calculations when the
The nature of dark matter has been debated for years. Now, some physicists believe a simple theory may explain it. They've suggested that most of the matter in the universe may be made out of particles that possess an unusual, doughnut-shaped electromagnetic field called an anapole, which means that dark matter would be endowed with a rare form of electromagnetism.
Standard cosmology—that is, the Big Bang Theory with its early period of exponential growth known as inflation—is the prevailing scientific model for our universe, in which the entirety of space and time ballooned out from a very hot, very dense point into a homogeneous and ever-expanding vastness. This theory accounts for many of the physical phenomena we observe. But what if that's not all there was to it?
Hi!I have the, in my opinion, very good Sony SS-M9 speakers. But I would like to have a good matching center and surround speakers to them. What speakers would match my Sony speakers?Thanks in advance/Mattias
A new analysis of experimental results hints that dark matter may be a …
We are awash in the unseen, a fact revealed to us by science. But there is more to discover. The hunt for dark matter is still on, says astrophysicist Adam Frank, despite news of another failed attempt to detect the mysterious stuff.
Neutrinos are a form of dark matter, and they play a role in the evolution of the universe.
Dark matter, the mysterious substance that constitutes most of the material universe, remains as elusive as ever. Although experiments on the ground and in space have yet to find a trace of dark matter, the results are helping scientists rule out some of the many theoretical possibilities. Three studies published earlier this year, using six or more years of data from NASA's Fermi Gamma-ray Space Telescope, have broadened the mission's dark matter hunt using some novel approaches.
Every year, the Dutch physics community gathers in a town called Veldhoven to …
Researchers have developed a novel computer simulation of dark matter that offers information on the density profiles of the bubble-like cosmic voids that
Hypervelocity stars may allow us to map dark matter as they leave the Milky Way.
Although dark matter makes up about 27% of the universe, astronomers have been unable to observe it directly.
Dark matter has never been seen, but scientists were able to reveal why two galaxies’ stellar masses had so much less dark matter than expected.
The Fermi Gamma-Ray Space Telescope team is considering a new observing strategy that would focus on the center of the galaxy
The universe probably has only a fraction of the mass needed to halt and reverse its expansion, say two astronomers in the US. Their finding strikes a blow at the popular inflation theory, which holds that the Universe will neither collapse nor expand forever but instead lies poised on the knife edge between the two. …
What are the building blocks of everything that makes up the universe, and where did it all come from?
For the first time astronomers are able to see indirect evidence of dark matter and how this invisible force impacts on the crowded and violent lives of galaxies. University of British Columbia researcher Catherine Heymans has produced the highest resolution map of dark matter ever captured before.
A strange glow coming from the Milky Way’s center was thought to be due to ordinary pulsars. But a new look at a years-old study shows that dark matter might…
Most of what exists in the universe is invisible to us. We think the universe is made of normal (baryonic) matter, dark matter, and dark energy. The subato
The famed cosmologist unveils her latest theories on the invisible universe, extra dimensions and human consciousness
An Italian team claim to have observed dark matter particles in a detector, replicating an earlier finding, but physicists remain sceptical
According to cosmologists, galaxies are joined together by filaments, quite literally. These filaments form the cosmic web and are made of mostly dark matter, many stars and some gas. Observing these filaments…
One professor who studies the earth and one who studies space came together in the pursuit to detect and define dark matter. They are one step closer. Using 16 years of archival data from GPS satellites that that orbit the earth, the University of Nevada, Reno team looked for dark matter clumps in the shape of walls or bubbles and which would extend far out beyond the GPS orbits, the solar system and beyond.
If astronomers' calculations are correct, the Solar System is right in the middle of a turbulent space event: a vast 'hurricane' of dark matter, blowing at an insane speed of 500 kilometres per second (310 mps).
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