ALPHA

Set up in late 2005, ALPHA makes, captures and studies atoms of antihydrogen and compares these with hydrogen atoms.

16 results

ALPHA experiment at CERN observes the influence of gravity on antimatter

The result is a milestone in the study of the properties and behaviour of antimatter

Press release
Physics
27 September, 2023
Physics
Press release
27 September, 2023

ALPHA reports first measurements of certain quantum effects in antimatter

The measurements are consistent with predictions for “normal” matter and pave the way for future precision studies

News
Physics
19 February, 2020

New antimatter gravity experiments begin at CERN

The ALPHA-g and GBAR experiments have received their first beams of antiprotons

News
Experiments
02 November, 2018
Experiments
News
02 November, 2018

ALPHA experiment takes antimatter to a new level

The ALPHA collaboration has observed a new electronic transition in the antihydrogen atom

News
Physics
22 August, 2018

A new era of precision for antimatter research

The ALPHA experiment at CERN has measured a light-induced transition in antihydrogen with unprecedented precision

News
Physics
04 April, 2018

The ALPHA experiment explores the secrets of antimatter

The ALPHA experiment at CERN’s Antiproton Decelerator reports the first observation of the hyperfine structure of antihydrogen

News
Physics
03 August, 2017

ALPHA team celebrate antimatter light spectrum result

The ALPHA collaboration celebrate this week after twenty years of work resulted in them seeing, for the first time, antimatter's light spectrum

News
Experiments
20 December, 2016
Experiments
News
20 December, 2016

ALPHA observes light spectrum of antimatter for first time

In a Nature paper, the ALPHA collaboration reports the first ever measurement on the optical spectrum of an antimatter

News
Experiments
19 December, 2016
Experiments
News
19 December, 2016

CERN’s ALPHA experiment measures charge of antihydrogen

ALPHA reports a measurement of the electric charge of antihydrogen atoms, finding it to be compatible with zero to eight decimal places

News
Physics
03 June, 2014

ALPHA: Novel investigation of gravity and antimatter

The ALPHA collaboration has published a paper describing the first direct analysis of how antimatter is affected by gravity

News
Physics
30 April, 2013