A guide, friend and/or mentor to the invited authors featured in the collection, Dalgarno is known in the atomic and molecular physics community as the ‘father of molecular astrophysics and ultracold chemistry’.
Guest Editors – James F Babb, Robin Côté, Hossein R Sadeghpour and Phillip C Stancil – have successfully compiled a collection of 16 articles (incl. 2 Letters) spanning the breadth of research close to Dalgarno’s heart, i. e. looking at atomic and molecular processes in the ultracold regime, the chemical regime and astrophysics, giving its name to the focus issue.
We hope you enjoy reading these articles, all currently* free to read, and thank the guest editors and all authors for contributing to this special issue, special on more than one level. (*or for perpetuity when published under an Open Access mandate).
Chemical reactions in the limit of zero kinetic energy: virtual states and Ramsauer minima in F + H2 → HF + H by E Bodo et al 2004 J. Phys. B: At. Mol. Opt. Phys. 37 3641
Atomic and molecular processes in the early Universe by S Lepp et al 2002 J. Phys. B: At. Mol. Opt. Phys. 35 R57
Penning ionization by metastable helium atoms by K L Bell et al 1968 J. Phys. B: At. Mol. Phys. 1 18
Hydrogen–antihydrogen scattering in the Born–Oppenheimer approximation by S Jonsell et al 2004 J. Phys. B: At. Mol. Opt. Phys. 37 1195
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Fig 1: Three-dimensional cross sections of the 6D PES for N4 taken from Efficient non-parametric fitting of potential energy surfaces for polyatomic molecules with Gaussian processes
By Jie Cui and Roman V Krems 2016 J. Phys. B: At. Mol. Opt. Phys. 49 224001 , © IOP Publishing, All Rights Reserved.