Antimatter

Fermi Satellite Data Puts New Constraints On The Possibility Of Antimatter Stars

What if some of the antimatter that was thought to have disappeared was hiding in the form of anti-stars? Researchers from the Institute for Research in Astrophysics and Planetology (IRAP—CNRS/CNES/UT3 Paul Sabatier) are using the Fermi gamma-ray...
Related topics: Satellites, Space, Astrophysics

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Want To Trap Antimatter? Blast It With Lasers

Antimatter is believed to play a huge part in the story of our universe. It’s the counterpart to matter: identical in every way – with protons, neutrons and electrons – but with an opposite electric charge. According to our best understanding...
Related topics: Laser, Electrons

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Cern Alpha Collaboration Cools Antihydrogen Atoms With Laser Light

Researchers at the ALPHA collaboration at CERN have for the first time succeeded in cooling down antihydrogen atoms using laser light. Antihydrogen is the simplest form of atomic antimatter, and the technique known as laser cooling was first...
Related topics: CERN, Laser

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Physicists Give Antimatter The Chills

Enlarge / One of the magnets used to help contain antimatter. (credit: Brookhaven National Lab) On Wednesday, scientists reported successfully cooling atoms made of antimatter using an ultraviolet laser. The cooling process deployed here works on...
Related topics: Physics, Laser

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Icecube Spots First Ultra-high-energy Antineutrino Directly Observed On Earth

An incredibly high-energy cosmic particle called an electron antineutrino — the electron neutrino’s antimatter twin — has been directly observed on Earth for the first time by the IceCube collaboration, an international team that includes Penn...
Related topics: Physics, Electrons, Neutrinos

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Study Finds Unexpected Antimatter Asymmetry In The Proton

Symmetry is an important underlying structure of nature, present not only in mathematics and art, but also in living organisms and galaxies. Scientists originally thought protons, the positively charged particle at the center of every atom,...
Related topics: Mathematics, Galaxies, Space, Physics

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Lack Of Symmetry In Qubits Can't Fix Errors In Quantum Computing, Might Explain Matter/antimatter

A team of quantum theorists seeking to cure a basic problem with quantum annealing computers -- they have to run at a relatively slow pace to operate properly -- found something intriguing instead.
Related topics: Qubits, Quantum, Physics

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Aegis On Track To Test Freefall Of Antimatter

It's a fundamental law of physics that even the most ardent science-phobe can define: matter falls down under gravity. But what about antimatter, which has the same mass but opposite electrical charge and spin? According to Einstein's general theory...
Related topics: Physics, Albert Einstein

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One-dimensional Quantum Nanowires Fertile Ground For Majorana Zero Modes

One-dimensional quantum 'nanowires' - which have length, but no width or height - provide a unique environment for the formation and detection of a quasiparticle known as a Majorana zero mode, which are their own antimatter particle. A new advance...
Related topics: Quantum, Physics

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Cern Scientific Team Develops Transportable 'antimatter Trap'

Antimatter is matter defined in modern physics as being composed of antiparticles of the corresponding particles of "normal" matter. CERN's BASE team conducts the research, and is behind several antimatter breakthroughs.
Related topics: CERN, Physics

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New Calculation Refines Comparison Of Matter With Antimatter

An international collaboration of theoretical physicists has published a new calculation relevant to the search for an explanation of the predominance of matter over antimatter in our universe. The new calculation gives a more accurate prediction...
Related topics: Physics

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Antimatter Discovery Reveals Clues About The Universe's Beginning

New evidence from neutrinos points to one of several theories about why the cosmos is made of matter and not antimatter -- Read more on ScientificAmerican.com
Related topics: Scientific Discoveries, Neutrinos

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An Imbalance Among Tiny Particles Offers A Big Cosmology Clue

If matter and antimatter cancel each other out, how can the universe exist? A discrepancy in the behavior of neutrinos and antineutrinos hints at an answer.
Related topics: Neutrinos

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Antimatter Hunt Closes In On The Big Bang’s Biggest Head-scratcher

One of the core secrets of the universe could be another step closer to a solution, with scientists making a huge breakthrough in understanding matter and antimatter and the interplay between the two. Little-comprehended and shrouded with questions,...
Related topics: Big Bang

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Weird Neutrino Behavior Could Explain Long-standing Antimatter Mystery

But more data are needed before physicists know for sure -- Read more on ScientificAmerican.com
Related topics: Neutrinos, Physics

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Neutrinos May Help Us Understand How Matter Prevailed Over Antimatter

Enlarge / The Super Kamiokonde neutrino detector as it was being filled with water. (credit: Super Kamiokande) Everything we can see in the Universe is made of matter, and we wouldn't exist without it. For physicists, this is actually a problem....
Related topics: Neutrinos, Physics

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Frozen-planet States In Exotic Helium Atoms

Exotic subatomic particles that are like 'normal' particles apart from one, opposite, property—such as the positron, which is like an electron but positively rather than negatively charged—are collectively known as antimatter. Direct studies of...
Related topics: Space, Helium, Positrons, Electrons

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The Axion Solves Three Mysteries Of The Universe

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.
Related topics: Physics

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Mysterious 'antihydrogen' Particles Reveal Uncanny Quantum Effect

The bubbling, raucous quantum vacuum distorts the shape of every hydrogen atom in the universe, and it distorts antimatter "antihydrogen" too.
Related topics: Quantum, Physics, Hydrogen

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Alpha Collaboration Reports First Measurements Of Certain Quantum Effects In Antimatter

The ALPHA collaboration at CERN has reported the first measurements of certain quantum effects in the energy structure of antihydrogen, the antimatter counterpart of hydrogen. These quantum effects are known to exist in matter, and studying them...
Related topics: Quantum, Physics, CERN, Hydrogen

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