The positron preferentially forms and annihilates from a bound state called positronium
Gidley, "Depth-profiled positronium
annihilation lifetime spectroscopy on porous films," Colloids and Surfaces A: Physicochemical and Engineering Aspects, vol.
The increased sensitivity of J-PET with respect to previous discrete symmetry tests with o-Ps[right arrow]3[gamma] is achieved by a large geometrical acceptance and angular resolution of the detector as well as by improved control of the positronium
Under given circumstances, both particle and antiparticle can form a bound state, called positronium
We attempt to validate our theory by exploring the hydrogenoid atomic model with mass-ratio varying by three orders of magnitude to include the hydrogen, muonium and positronium
Among his topics are the diffraction of particles in polarized crystals, positronium
and muonium spin rotation and oscillations, the phenomenon of time-reversal violating magnetic field generation by a static electric field and electric field generation by a static magnetic field, spin rotation of particles moving in bent crystals and measuring the magnetic moment of short-lived particles and nuclei, and synchrotron-type radiation processes in crystals and polarization phenomena accompanying them.
annihilation studies of polycarbonate, polyethersulphone and polysulphone," European Polymer Journal, vol.
This is done to eliminate the possibility of the trapping of positrons and quenching of positronium
(the metastable bound state of the positron and an electron) by the air and gases otherwise getting trapped within the powdered sample .
trapping in free volume of polymers," Radiation Physics and Chemistry, vol.
In the lab, the researchers took the first step towards measuring the free fall of "positronium
" - a bound state between a positron and an electron.
He and Allen Mills did the first laser spectroscopy of positronium
, the bound state of an electron and positron in 1982.