Antimatter Archives – Page 4 of 10

BASE compares charge-to-mass ratios of proton and antiproton to high precision

This high-precision measurement was achieved by comparing the cyclotron frequencies of antiprotons and negatively charged hydrogen ions in a Penning trap.

AMS finds evidence of new source of positrons in cosmic rays

The Alpha Magnetic Spectrometer (AMS) on the International Space Station (ISS) has new results on energetic cosmic-ray electrons and positrons, based on analysis of the first 41 billion events.

Beams back at the Antiproton Decelerator

Antiprotons returned to CERN’s Antiproton Decelerator (AD) on 5 August and experiments have been receiving beams since mid-September, following an intensive consolidation programme during the first...

First direct high-precision measurement of the proton’s magnetic moment sets the stage for BASE

A German/Japanese collaboration working at the University of Mainz has performed the first direct high-precision measurement of the magnetic moment of the proton – which is by far the most accurate ...

ALPHA measures charge of antihydrogen

ALPHAfound it to be compatible with zero to eight decimal places.

Antigravity matters at WAG 2013

A report from a meeting in Bern on the interactions of antimatter with gravity.

ASACUSA produces first beam of antihydrogen atoms for hyperfine study

The ASACUSA collaboration reports the unambiguous detection of antihydrogen atoms 2.7 m downstream from their production.

ALPHA presents novel investigation of the effect of gravity on antimatter

The ALPHA collaboration at CERN has made the first direct analysis of how antimatter is affected by gravity. The ALPHA experiment was the first to trap atoms of antihydrogen, held in place with a stro...

ATRAP makes world’s most precise measurement of antiproton magnetic moment

The Antihydrogen TRAP (ATRAP) experiment at CERN’s Antiproton Decelerator has reported a new measurement of the antiproton’s magnetic moment made with an unprecedented uncertainty of 4.4 parts pe...