SEP 20, 2018 08:27 AM PDT

Defining the "Colors" of Antimatter

Atoms of regular matters, such as hydrogen, can emit a distinct spectrum of lights when their electrons get excited and move between two different energy levels (officially known as "transitions"). Scientists have long asked the question: do the atoms of antimatters do the same?

In a study published in the journal Nature earlier this year, the ALPHA collaboration at the European Organization for Nuclear Research (CERN) confirmed the hypothesis, with their spectral measurments of incredible precision.

First, they made antihydrogen atoms by combining antiprotons and positrons (also known as antielectrons). Confined to the vacuum within a magnetic trap, antihydrogen were exposed to a beam of high-energy laser light. The atoms absorbed the energy, which resulted in electron transitions and the emission of a number of element-specific spectral series. The measured spectral profile was then compared with that of hydrogen atoms. 

Compared to those from their 2016 study, the latest results from ALPHA takes antihydrogen spectroscopy to the next level. Using multiple laser frequencies that enables the measurement of the spectral shape (spread in colours) of the 1S-2S transition of antihydrogen, CERN scientists got a measurement of antihydrogen frequency 100 times more precise than two years ago.

Source: CERN via Youtube

About the Author
  • With years of experience in biomedical R & D, Daniel is also very into writing. He is constantly fascinated by what's happening in the world of science. He hopes to capture the public's interest and promote scientific literacy with his trending news articles.
You May Also Like
JUN 16, 2018
Chemistry & Physics
JUN 16, 2018
I Say Black Holes, You Say Wormholes
In a recent paper in the journal Physical Review D, a group of European physicists...
JUL 17, 2018
Chemistry & Physics
JUL 17, 2018
The Chemistry in Airbags
The name "airbag" can be deceiving because the bag is not exactly filled with air. Instead, this life-saving device is filled with nitrogen gas,...
JUL 30, 2018
Videos
JUL 30, 2018
Is it Good to Open Your Windows During a Hurricane?
You might’ve heard the idea that opening your windows during a hurricane can reduce the stress on your home’s roof and walls as it’s bein...
SEP 04, 2018
Chemistry & Physics
SEP 04, 2018
Plant-based Mosquito Repellents Getting (Rid of) A Lot of Buzz
Mosquitoes are well-known carriers for many disease-causing viruses and parasites. Over the years, widespread application of synthetic pesticides caused ce...
SEP 05, 2018
Neuroscience
SEP 05, 2018
New Research on How the Brain Learns
Understanding how the brain learns is a complex undertaking. There are billions of neurons in the mind that signal each other furiously every day. Memories...
OCT 05, 2018
Health & Medicine
OCT 05, 2018
A Caterpillar Robot for Drug Delivery? Ya, That's a Thing
Drug delivery is a significant part of medical research since a drug cannot work if it cannot access the part of the body where it's needed. Nanotechno...
Loading Comments...