Published In

Journal of Physics B: Atomic, Molecular and Optical Physics

Document Type

Post-Print

Publication Date

2014

Subjects

Proton-antiproton interactions, Antimatter -- Analysis, Particles (Nuclear physics), Photoionization

Abstract

We provide an estimate of the cross section for the radiative attachment of a second positron into the state of the ion using Ohmura and Ohmura's (1960 Phys. Rev. 118 154) effective range theory and the principle of detailed balance. The ion can potentially be created using interactions of positrons with trapped antihydrogen, and our analysis includes a discussion in which estimates of production rates are given. Motivations to produce include its potential use as an intermediary to cool antihydrogen to ultra-cold (sub-mK) temperatures for a variety of studies, including spectroscopy and probing the gravitational interaction of the anti-atom.

Description

This is the accepted version of an article appearing in Journal of Physics B: Atomic, Molecular and Optical Physics 47, 225202 (2014) and can be found online at: http://iopscience.iop.org/article/10.1088/0953-4075/47/22/225202

DOI

10.1088/0953-4075/47/22/225202

Persistent Identifier

http://archives.pdx.edu/ds/psu/16688

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