Winter school on Physics with Trapped Charged Particles

Scaling behavior of the ground-state antihydrogen yield from CTMC simulations

Not scheduled

20m

Ecole de Physique des Houches

Speaker

Dr Balint Radics (RIKEN)

Description

Poster is presented on CTMC simulation and antihydrogen level population calculation results. Ref: Phys. Rev. A 90, 032704 (2014)

Summary

Antihydrogen production has reached such a level that precision spectroscopic measurements of its properties are within reach. In particular, the ground-state level population is of central interest for experiments aiming at antihydrogen spectroscopy. The positron density and temperature dependence of the ground-state yield is a result of the interplay between recombination, collisional, and radiative processes. Considering the fact that antihydrogen atoms with the principal quantum number n=15 or lower quickly cascade down to the ground state within 1 ms, the number of such states is adopted as a measure of useful antihydrogen atoms. It has been found that the scaling behavior of the useful antihydrogen yield is different depending on the positron density and positron temperature.