SEP 20, 2018 8:27 AM PDT

Defining the "Colors" of Antimatter

WRITTEN BY: Daniel Duan

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
Graduated with a bachelor degree in Pharmaceutical Science and a master degree in neuropharmacology, Daniel is a radiopharmaceutical and radiobiology expert based in Ottawa, Canada. With years of experience in biomedical R&D, Daniel is 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. The recurring topics in his Chemistry & Physics trending news section include alternative energy, material science, theoretical physics, medical imaging, and green chemistry.
You May Also Like
AUG 11, 2022
Drug Discovery & Development
Alzheimer's disease gets new drug without side effects
AUG 11, 2022
Alzheimer's disease gets new drug without side effects
In a recent study published in Nature Medicine, a team of researchers from the Korea Advanced Institute of Science and T ...
AUG 15, 2022
Microbiology
Untangling the Links Between Alcohol, Liver Disease & Gut Microbes
AUG 15, 2022
Untangling the Links Between Alcohol, Liver Disease & Gut Microbes
Chronic alcohol use is a serious health problem, and a major contributor to liver disease and mortality. The gut microbi ...
AUG 30, 2022
Chemistry & Physics
Physics in a Femtosecond
AUG 30, 2022
Physics in a Femtosecond
In a recent study published in Physical Review Letters, an international team of researchers examined how ions interact ...
SEP 02, 2022
Chemistry & Physics
James Webb Space Telescope Sees Its First Exoplanet
SEP 02, 2022
James Webb Space Telescope Sees Its First Exoplanet
The James Webb Space Telescope sent back its first image of an exoplanet, the first one taken from space. The JWST launc ...
SEP 25, 2022
Earth & The Environment
Rooftop Solar Cells Can Save a Ton of Water
SEP 25, 2022
Rooftop Solar Cells Can Save a Ton of Water
In submitted study in Science of The Total Environment, two researchers from Duke University estimate the average amount ...
SEP 30, 2022
Earth & The Environment
Ancient Mass Extinctions Likely from Volcanic Activity
SEP 30, 2022
Ancient Mass Extinctions Likely from Volcanic Activity
In a recent study published in the Proceedings of the National Academy of Sciences, a team of researchers led by Dartmou ...
Loading Comments...