Antimatter News and Discussions

[wjfox]

[Nanotechandmorefuture]

They've been throwing numbers out there huh? And by they I mean anyone involved in that or not. Lol

[wjfox]

Antimatter falls down, not up: CERN experiment confirms theory

Observing this simple phenomenon had eluded physicists for decades.

27 September 2023

Physicists have shown that, like everything else experiencing gravity, antimatter falls downwards when dropped.

This outcome is not surprising — a difference in the gravitational behaviour of matter and antimatter would have huge implications for physics — but observing it directly had been a dream for decades, says Clifford Will, a theoretician who specializes in gravity at the University of Florida in Gainesville. “It really is a cool result.”

Because gravity is much weaker than other ubiquitous forces such as electrostatic attraction or magnetism, separating it from other effects in the laboratory is a delicate affair, says Jeffrey Hangst, who leads of the ALPHA-g experiment at CERN, the particle physics laboratory near Geneva, Switzerland. “Gravity is just so bloody weak, you really have to be careful,” says Hangst, who is also a physicist at the University of Aarhus in Denmark. He and his collaborators reported the findings on 27 September in Nature1.

Similar experiments will aim to test whether gravity acts with the same strength on antimatter as it does on matter. Any tiny discrepancies could help to solve one of the biggest problems in physics — how the Universe came to be made almost exclusively of matter, even though equal amounts of matter and antimatter should have arisen from the Big Bang.

https://www.nature.com/articles/d41586- ... 1695831577

[caltrek]

Antimatter falls down, not up: CERN experiment confirms theory

Observing this simple phenomenon had eluded physicists for decades.

27 September 2023

...

https://www.nature.com/articles/d41586- ... 1695831577

Here is an interesting video regarding such an experiment:

[Time_Traveller]

Antimatter: Scientists freeze positronium atoms with lasers

3 hours ago

It's extremely rare and usually exists for just 142 billionths of a second.

Positronium can generate huge amounts of energy. It can shed light on 'antimatter' which existed at the beginning of the Universe, and studying it could revolutionise physics, cancer treatment, and maybe even space travel.

But until now the elusive substance has been almost impossible to analyse because its atoms move around so much.

Now scientists have a workaround - freezing it with lasers.

"Physicists are in love with positronium," said Dr Ruggero Caravita, who led the research at the European Organisation for Nuclear Research (Cern), near Geneva. "It is the perfect atom to do experiments with antimatter."

https://www.bbc.co.uk/news/science-environment-68349448

[wjfox]

[weatheriscool]

Scientists transport protons in truck, paving way for antimatter delivery
https://phys.org/news/2024-10-big-porta ... atter.html
by Sarah Charley, CERN

Antimatter might sound like something out of science fiction, but at the CERN Antiproton Decelerator (AD), scientists produce and trap antiprotons every day. The BASE experiment can even contain them for more than a year—an impressive feat considering that antimatter and matter annihilate upon contact.

The CERN AD hall is the only place in the world where scientists are able to store and study antiprotons. But this is something that scientists working on the BASE experiment hope to change one day with their subproject BASE-STEP: an apparatus designed to store and transport antimatter.

Most recently, the team of scientists and engineers took an important step towards this goal by transporting a cloud of 70 protons in a truck across CERN's main site.

"If you can do it with protons, it will also work with antiprotons," said Christian Smorra, the leader of BASE-STEP. "The only difference is that you need a much better vacuum chamber for the antiprotons."

[wjfox]

Breakthrough in antimatter production

24th November 2025

Scientists at CERN have reported an eightfold increase in the rate of production of antimatter, achieved by using laser-cooled beryllium ions to cool positrons to nearly absolute zero. This technique allows 15,000 antihydrogen atoms to be created in under seven hours.

Read more: https://www.futuretimeline.net/blog/202 ... uction.htm



Antimatter produced at the Antihydrogen Laser Physics Apparatus (ALPHA) collaboration. Credit: U.S. National Science Foundation

[wjfox]

Please drive carefully: scientists plan to transport volatile antimatter for first time

Sat 14 Mar 2026 05.00 GMT

When the truck pulls away from the building at Cern, the European particle physics laboratory near Geneva, all eyes will be on its precious cargo, a one-tonne device containing some of the most exotic material on Earth.

The 20-minute test run around the campus, pencilled in for later this month, will mark the world’s first attempt to transport antimatter, a substance so delicate that when it meets normal matter, both are consumed in a burst of pure energy.

To reach this moment has taken years. But if the test goes well – meaning the truck returns with the antimatter intact – it will pave the way for Cern to transport the material to other laboratories. In those facilities, researchers will perform precision measurements in the hope of learning why our universe is built from matter and not these bizarre mirror particles.

“A core question we want to understand is where did matter come from. And then, if you know about antimatter, it’s natural to ask, why is that not here? The process is not understood and we are hunting for clues as to why it happened,” says Dr Christian Smorra, a physicist on the Baryon Antibaryon Symmetry Experiment (Base) at Cern.

Antimatter, a name that implies an almost ideological opposition to the bedrock of our existence, is warmly embraced in science fiction. In Star Trek, it powers the Enterprise’s warp drive and photon torpedoes. In Dan Brown’s Angels and Demons, a canister containing a quarter of a gram of antimatter is stolen from Cern in a plot to blow up the Vatican.

https://www.theguardian.com/science/202 ... first-time



Photograph: Max Brice/Cern

[wjfox]

World first: antimatter particles transported in Geneva

March 24, 2026 - 12:22

For the first time in the world, antimatter is being transported by road at CERN in Geneva. The test carried out on Tuesday at the nuclear research centre is intended to prove that the antiparticles can be transported safely.

During the experiment, 100 to 1,000 antiprotons were to be transported over five kilometres. In view of this “extremely small number” of antiprotons, there is no danger to the environment, CERN told the Swiss News Agency Keystone-SDA.

Antimatter is a kind of mirror version of matter. When they come into contact, they annihilate each other in flashes of light. Researchers have developed a special container to transport them. In this so-called Penning trap, the particles float in a high vacuum at -268°C.

According to CERN, if the trap fails during transport, the energy released will be around one millionth of a joule – about as much as it takes to press a keyboard key.

https://www.swissinfo.ch/eng/various/an ... e/91149348

[raklian]