Current Antimatter News and Events

Current Antimatter News and Events, Antimatter News Articles.
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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. (2021-02-22)

LHC/ATLAS: A unique observation of particle pair creation in photon-photon collisions
Creation of matter in an interaction of two photons belongs to a class of very rare phenomena. From the data of the ATLAS experiment at the LHC, collected with the new AFP proton detectors at the highest energies available to-date, a more accurate - and more interesting - picture of the phenomena occurring during photon collisions is emerging. (2021-02-18)

A new tool in the search for axions
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. (2021-02-04)

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 UNSW advance in detection of these exotic quasiparticles (just published in Nature Communications) has potential applications in fault-resistant topological quantum computers, and topological superconductivity. (2021-01-19)

Enlightening dark ions
Every field has its underlying principles. For economics it's the rational actor; biology has the theory of evolution; modern geology rests on the bedrock of plate tectonics. (2021-01-12)

Pizza can help address the dark matter mystery?
The IBS research team developed a novel multiple-cell cavity ('pizza cavity') haloscope that will extend the axion search band to higher-frequency regions. (2020-12-11)

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 for the likelihood with which kaons decay into a pair of electrically charged pions vs. a pair of neutral pions. (2020-09-17)

Big answers from tiny particles
A team of physicists led by Kanazawa University demonstrate a theoretical mechanism that would explain the tiny value for the mass of neutrinos and point out that key operators of the mechanism can be probed by current and future experiments. This work may provide a breakthrough for big philosophical quandaries, including why matter exists. (2020-09-14)

A blue spark to shine on the origin of the Universe
An interdisciplinary team of scientists led by researchers from DIPC, Ikerbasque and UPV/EHU, has demonstrated that it is possible to build an ultra-sensitive sensor based on a new fluorescent molecule able to detect the nuclear decay key to knowing whether or not a neutrino is its own antiparticle. The results of this study, published in the prestigious journal Nature, have great potential to determine the nature of the neutrino and thus answer fundamental questions about the origin of the Universe. (2020-06-23)

Making matter out of light: High-power laser simulations point the way
Engineers at UC San Diego developed a set of simulations involving high-power lasers that could help us recreate the transformation of light into matter, and better understand what happened at the very beginning of the universe. The study offers a recipe for researchers at the Extreme Light Infrastructure (ELI) high-power laser facility to follow to produce pairs of matter and antimatter particles from light. (2020-06-01)

New simple method for measuring the state of lithium-ion batteries
Scientists at Johannes Gutenberg University Mainz (JGU) and the Helmholtz Institute Mainz (HIM) in Germany have presented a non-contact method for detecting the state of charge and any defects in lithium-ion batteries. (2020-05-07)

Scientists make step towards understanding the universe
Physicists from the University of Sheffield have taken a step towards understanding why the universe is made of mostly matter and not antimatter, by studying the difference between the two. (2020-04-16)

T2K insight into the origin of the universe
Lancaster physicists working on the T2K major international experiment in Japan are closing in on the mystery of why there is so much matter in the universe, and so little antimatter. The Big Bang should have created equal amounts of matter and antimatter in the early universe. One of the greatest challenges in physics is to determine what happened to the antimatter, or why we see an asymmetry between matter and antimatter. (2020-04-15)

T2K results restrict possible values of neutrino CP phase
The T2K Collaboration has published new results showing the strongest constraint yet on the parameter that governs the breaking of the symmetry between matter and antimatter in neutrino oscillations. Using beams of muon neutrinos and muon antineutrinos, T2K has studied how these particles and antiparticles transition into electron neutrinos and electron antineutrinos, respectively. (2020-04-15)

Where did the antimatter go? Neutrinos shed promising new light
We live in a world of matter -- because matter overtook antimatter, though they were both created in equal amounts when our universe began. Neutrinos and the associated antimatter particles, antineutrinos, are reported by the T2K collaboration to have a high likelihood of differing behaviour that offers a promising path to explaining the mysterious disappearance of antimatter. This work involved French scientists at the CNRS, École Polytechnique - IPP, Sorbonne Université and the CEA. (2020-04-15)

Why didn't the universe annihilate itself? Neutrinos may hold the answer
New results from an experiment called T2K suggest that physicists are closer than ever before to answering a major mystery: Why didn't the universe annihilate itself in a humungous burst of energy not long after the Big Bang? (2020-04-15)

Strongest evidence yet that neutrinos explain how the universe exists
New data throws more support behind the theory that neutrinos are the reason the universe is dominated by matter. (2020-04-15)

Frozen-planet states in exotic helium atoms
In a new study published in EPJ D. Tasko Grozdanov from Serbia and Evgeni Solov'ev from Russia describe the configuration and energy levels of antiprotonic helium that can potentially be produced by colliding slow antiprotons with ordinary helium at CERN. (2020-03-18)

APS tip sheet: Origins of matter and antimatter
Study suggests an 'axiogenesis' mechanism for the explanation of the matter to antimatter ratio in the Universe (2020-03-16)

Paper sheds light on infant universe and origin of matter
A new study of the QCD axion, conducted to better understand the origin of the universe, has provided insight into some of the most enduring questions in fundamental physics. (2020-03-10)

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. (2020-03-10)

'Strange' glimpse into neutron stars and symmetry violation
New results from precision particle detectors at the Relativistic Heavy Ion Collider (RHIC) offer a fresh glimpse of the particle interactions that take place in the cores of neutron stars and give nuclear physicists a new way to search for violations of fundamental symmetries in the universe. (2020-03-09)

Why is there any matter in the universe at all? New Sussex study sheds light
Scientists at the University of Sussex have measured a property of the neutron -- a fundamental particle in the universe -- more precisely than ever before. (2020-02-28)

Buckyballs release electron-positron pairs in forward directions
New research published in EPJ D reveals the characteristics of positronium formation within football-shaped nanoparticles, C60, for the first time. At specific positron impact energies, the study shows that positronium emission dominates in the same direction as incoming positrons. (2019-12-23)

NASA's Fermi Mission links nearby pulsar's gamma-ray 'halo' to antimatter puzzle
NASA's Fermi Gamma-ray Space Telescope has discovered a faint but sprawling glow of high-energy light around a nearby pulsar. If visible to the human eye, this gamma-ray 'halo' would appear about 40 times bigger in the sky than a full Moon. (2019-12-19)

Colliding molecules and antiparticles
A study by Marcos Barp and Felipe Arretche from Brazil published in EPJ D shows a model of the interaction between positrons and simple molecules that is in good agreement with experimental results. (2019-12-13)

Researchers perfect nanoscience tool for studies of nuclear waste storage
Studying radiation chemistry and electronic structure of materials at scales smaller than nanometres, the University of Guelph team prepared samples of clay in ultra-thin layers. Working at the TRIUMF particle accelerator, they bombarded the samples with antimatter subatomic particles. They found their system is a proven tool for radiation studies of material to be used to store nuclear waste -- important for Canadian nuclear industry looking to build its first geological repository. (2019-12-12)

Gamma-ray laser moves a step closer to reality
A physicist at the University of California, Riverside, has performed calculations showing hollow spherical bubbles filled with a gas of positronium atoms are stable in liquid helium. The calculations take scientists a step closer to realizing a gamma-ray laser. (2019-12-06)

Could the mysteries of antimatter and dark matter be linked?
RIKEN researchers 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. (2019-11-13)

A new approach to the hunt for dark matter
A study that takes a novel approach to the search for dark matter has been performed by the BASE Collaboration at CERN working together with a team at the PRISMA+ Cluster of Excellence at Johannes Gutenberg University Mainz (JGU). For the first time the researchers are exploring how dark matter influences antimatter instead of standard matter. (2019-11-13)

Closing in on elusive particles
In the quest to prove that matter can be produced without antimatter, the GERDA experiment at the Gran Sasso Underground Laboratory in Italy is looking for signs of neutrinoless double beta decay. The experiment has the greatest sensitivity worldwide for detecting the decay in question. To further improve the chances of success, a follow-up project, LEGEND, uses an even more refined decay experiment. (2019-09-05)

Radon inferior to radium for electric dipole moments (EDM) searches
An international research team led by the University of Liverpool has made a discovery that will help with the search for electric dipole moments (EDM) in atoms, and could contribute to new theories of particle physics such as supersymmetry. (2019-06-06)

Scientists offer designer 'big atoms' on demand
Physicists report that they can build and control particles that behave like tiny atoms with a precision never seen before. (2019-05-29)

First demonstration of antimatter wave interferometry
An international collaboration with participation of the University of Bern has demonstrated for the first time in an interference experiment that antimatter particles also behave as waves besides having particle properties. This success paves the way to a new field of investigations of antimatter. (2019-05-03)

Researchers discover CP violation in charm meson decays
Researchers from the Higher School of Economics and Yandex, as part of the LHCb collaboration at CERN, have been the first to discover CP violation in charm meson decays. This discovery may become a key to solving the mystery of matter-antimatter asymmetry in the universe. (2019-04-05)

Dark matter experiment finds no evidence of axions
In a paper published today in Physical Review Letters, an MIT-led team reports that in the first month of observations the experiment detected no sign of axions within the mass range of 0.31 to 8.3 nanoelectronvolts. This means that axions within this mass range, which is equivalent to about one-quintillionth the mass of a proton, either don't exist or they have an even smaller effect on electricity and magnetism than previously thought. (2019-03-28)

Physicists reveal why matter dominates universe
Physicists in the College of Arts and Sciences at Syracuse University have confirmed that matter and antimatter decay differently for elementary particles containing charmed quarks. (2019-03-21)

A trap for positrons
For the first time, scientists from the Technical University of Munich (TUM) and the Max Planck Institute for Plasma Physics (IPP) have succeeded in losslessly guiding positrons, the antiparticles of electrons, into a magnetic field trap. This is an important step towards creating a matter-antimatter plasma of electrons and positrons, like the plasmas believed to occur near neutron stars and black holes. In an interview, Dr. Eve Stenson presents her research work. (2019-02-28)

Why are you and I and everything else here?
We're here because there's more matter than antimatter in the universe. An article in Physical Review Letters explores the puzzle of the baryon asymmetry, one of the biggest unsolved problems in physics. (2019-02-01)

Doubly-excited electrons reach new energy states
Sabyasachi Kar from the Harbin Institute of Technology, China, and Yew Kam Ho from the Academia Sinica, Taipei, Taiwan, have now characterised the higher energy levels reached by electrons in resonance in three-particle systems, which are too complex to be described using simple equations. This theoretical model, published in a recent study in EPJ D, is intended to offer guidance for experimentalists interested in observing these resonant structures in positronium ions. (2018-11-13)

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