They've been throwing numbers out there huh? And by they I mean anyone involved in that or not. Lol
Re: Antimatter News and Discussions
Posted: Wed Sep 27, 2023 5:59 pm
by 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.
Here is an interesting video regarding such an experiment:
Re: Antimatter News and Discussions
Posted: Thu Feb 22, 2024 7:16 pm
by 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."
