The written version of my lecture is a personal account of the development of laser cooling
and trapping. Rather than give a balanced history of the field, I chose to present a personal …

In recent years, there has been a wealth of new science involving low-energy antimatter (ie,
positrons and antiprotons) at energies ranging from 10 2 to less than 10-3 eV. Much of this …

This paper gives the 1998 self-consistent set of values of the basic constants and conversion
factors of physics and chemistry recommended by the Committee on Data for Science and …

Positronium (Ps) is an exotic hydrogenic atom composed of an electron bound to a positron
via the Coulomb force. Being composed of two low-mass leptons, positronium is, for all …

The field of experimental positronium physics has advanced significantly in the last few
decades, with new areas of research driven by the development of techniques for trapping …

This paper gives the 1998 self-consistent set of values of the basic constants and conversion
factors of physics and chemistry recommended by the Committee on Data for Science and …

Atoms made of a particle and an antiparticle are unstable, usually surviving less than a
microsecond. Antihydrogen, made entirely of antiparticles, is believed to be stable, and it is …

Quantum electrodynamics (QED) is the first successful and still the most successful quantum
field theory. Simple atoms, being essentially QED systems, allow highly accurate theoretical …

This book provides a comprehensive and up-to-date account of the field of low energy
positrons and positronium within atomic and molecular physics. It begins with an …

The proton charge radius has been measured since the 1950s using elastic electron–proton
scattering and ordinary hydrogen atomic spectroscopy. In 2010, a highly precise …