Fifty years of antiprotons
It is 50 years since Emilio Segrè, Owen Chamberlain and their group first created an antiproton. Lynn Yarris describes their achievement at Berkeley's Bevatron in 1955.
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It is 50 years since Emilio Segrè, Owen Chamberlain and their group first created an antiproton. Lynn Yarris describes their achievement at Berkeley's Bevatron in 1955.
The latest in the Low Energy Antiproton Physics series of conferences in Bonn showed that this field of research is increasingly vibrant and exciting, as Walter Oelert describes.
A workshop in Japan in the spring looked at how to make and use beams of ultra-slow antiprotons over a wide range of physics.
The Balloon-borne Experiment with Superconducting Spectrometer (BESS) launched a cosmic-ray spectrometer from Antarctica on 13 December.
A new technique for cooling antiprotons has been tested at CERN's Antiproton Decelerator (AD), yielding 50 times more trapped antiprotons per cycle than ever before.
The new method consists of exciting caesium atoms from an oven with two lasers, and then introducing the caesium into a positron trap.
This is an important step towards the goal of producing antihydrogen atoms cold enough – that is, slow enough – for precision spectroscopy.
The antiproton may soon be better known than the proton, and an ion that is more hydrogen-like than hydrogen may become the subject of high-precision laser spectroscopy experiments. John Eades describ...
Given the apparent absence of antimatter at the cosmic scale, it might seem strange that a recent paper from the ASACUSA collaboration on quantum tunneling effects in collisions between antiprotonic h...
From providing a window on fundamental symmetries to probing the strong interaction, LEAP'03 covered the many parts played by low-energy antiprotons from accelerators, as John Eades reports.